21055248

素因数分解:

$2^4\times 3^3\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:142

約数の個数: 160

約数和(自身を含む): 66424320

約数和(自身を除く): 45369072

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 27, 34, 36, 47, 48, 51, 54, 61, 68, 72, 94, 102, 108, 122, 136, 141, 144, 153, 183, 188, 204, 216, 244, 272, 282, 306, 366, 376, 408, 423, 432, 459, 488, 549, 564, 612, 732, 752, 799, 816, 846, 918, 976, 1037, 1098, 1128, 1224, 1269, 1464, 1598, 1647, 1692, 1836, 2074, 2196, 2256, 2397, 2448, 2538, 2867, 2928, 3111, 3196, 3294, 3384, 3672, 4148, 4392, 4794, 5076, 5734, 6222, 6392, 6588, 6768, 7191, 7344, 8296, 8601, 8784, 9333, 9588, 10152, 11468, 12444, 12784, 13176, 14382, 16592, 17202, 18666, 19176, 20304, 21573, 22936, 24888, 25803, 26352, 27999, 28764, 34404, 37332, 38352, 43146, 45872, 48739, 49776, 51606, 55998, 57528, 68808, 74664, 77409, 86292, 97478, 103212, 111996, 115056, 137616, 146217, 149328, 154818, 172584, 194956, 206424, 223992, 292434, 309636, 345168, 389912, 412848, 438651, 447984, 584868, 619272, 779824, 877302, 1169736, 1238544, 1315953, 1754604, 2339472, 2631906, 3509208, 5263812, 7018416, 10527624, 21055248]

約数ペア:

[(1, 21055248), (2, 10527624), (3, 7018416), (4, 5263812), (6, 3509208), (8, 2631906), (9, 2339472), (12, 1754604), (16, 1315953), (17, 1238544), (18, 1169736), (24, 877302), (27, 779824), (34, 619272), (36, 584868), (47, 447984), (48, 438651), (51, 412848), (54, 389912), (61, 345168), (68, 309636), (72, 292434), (94, 223992), (102, 206424), (108, 194956), (122, 172584), (136, 154818), (141, 149328), (144, 146217), (153, 137616), (183, 115056), (188, 111996), (204, 103212), (216, 97478), (244, 86292), (272, 77409), (282, 74664), (306, 68808), (366, 57528), (376, 55998), (408, 51606), (423, 49776), (432, 48739), (459, 45872), (488, 43146), (549, 38352), (564, 37332), (612, 34404), (732, 28764), (752, 27999), (799, 26352), (816, 25803), (846, 24888), (918, 22936), (976, 21573), (1037, 20304), (1098, 19176), (1128, 18666), (1224, 17202), (1269, 16592), (1464, 14382), (1598, 13176), (1647, 12784), (1692, 12444), (1836, 11468), (2074, 10152), (2196, 9588), (2256, 9333), (2397, 8784), (2448, 8601), (2538, 8296), (2867, 7344), (2928, 7191), (3111, 6768), (3196, 6588), (3294, 6392), (3384, 6222), (3672, 5734), (4148, 5076), (4392, 4794)]