21380832

素因数分解:

$2^5\times 3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{397}}^1$

素因数の和:441

約数の個数: 144

約数和(自身を含む): 70407792

約数和(自身を除く): 49026960

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 17, 18, 22, 24, 32, 33, 34, 36, 44, 48, 51, 66, 68, 72, 88, 96, 99, 102, 132, 136, 144, 153, 176, 187, 198, 204, 264, 272, 288, 306, 352, 374, 396, 397, 408, 528, 544, 561, 612, 748, 792, 794, 816, 1056, 1122, 1191, 1224, 1496, 1584, 1588, 1632, 1683, 2244, 2382, 2448, 2992, 3168, 3176, 3366, 3573, 4367, 4488, 4764, 4896, 5984, 6352, 6732, 6749, 7146, 8734, 8976, 9528, 12704, 13101, 13464, 13498, 14292, 17468, 17952, 19056, 20247, 26202, 26928, 26996, 28584, 34936, 38112, 39303, 40494, 52404, 53856, 53992, 57168, 60741, 69872, 74239, 78606, 80988, 104808, 107984, 114336, 121482, 139744, 148478, 157212, 161976, 209616, 215968, 222717, 242964, 296956, 314424, 323952, 419232, 445434, 485928, 593912, 628848, 647904, 668151, 890868, 971856, 1187824, 1257696, 1336302, 1781736, 1943712, 2375648, 2672604, 3563472, 5345208, 7126944, 10690416, 21380832]

約数ペア:

[(1, 21380832), (2, 10690416), (3, 7126944), (4, 5345208), (6, 3563472), (8, 2672604), (9, 2375648), (11, 1943712), (12, 1781736), (16, 1336302), (17, 1257696), (18, 1187824), (22, 971856), (24, 890868), (32, 668151), (33, 647904), (34, 628848), (36, 593912), (44, 485928), (48, 445434), (51, 419232), (66, 323952), (68, 314424), (72, 296956), (88, 242964), (96, 222717), (99, 215968), (102, 209616), (132, 161976), (136, 157212), (144, 148478), (153, 139744), (176, 121482), (187, 114336), (198, 107984), (204, 104808), (264, 80988), (272, 78606), (288, 74239), (306, 69872), (352, 60741), (374, 57168), (396, 53992), (397, 53856), (408, 52404), (528, 40494), (544, 39303), (561, 38112), (612, 34936), (748, 28584), (792, 26996), (794, 26928), (816, 26202), (1056, 20247), (1122, 19056), (1191, 17952), (1224, 17468), (1496, 14292), (1584, 13498), (1588, 13464), (1632, 13101), (1683, 12704), (2244, 9528), (2382, 8976), (2448, 8734), (2992, 7146), (3168, 6749), (3176, 6732), (3366, 6352), (3573, 5984), (4367, 4896), (4488, 4764)]