19403856

素因数分解:

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

素因数の和:169

約数の個数: 90

約数和(自身を含む): 56393402

約数和(自身を除く): 36989546

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 47, 48, 61, 72, 94, 122, 141, 144, 183, 188, 244, 282, 366, 376, 423, 488, 549, 564, 732, 752, 846, 976, 1098, 1128, 1464, 1692, 2196, 2209, 2256, 2867, 2928, 3384, 4392, 4418, 5734, 6627, 6768, 8601, 8784, 8836, 11468, 13254, 17202, 17672, 19881, 22936, 25803, 26508, 34404, 35344, 39762, 45872, 51606, 53016, 68808, 79524, 103212, 106032, 134749, 137616, 159048, 206424, 269498, 318096, 404247, 412848, 538996, 808494, 1077992, 1212741, 1616988, 2155984, 2425482, 3233976, 4850964, 6467952, 9701928, 19403856]

約数ペア:

[(1, 19403856), (2, 9701928), (3, 6467952), (4, 4850964), (6, 3233976), (8, 2425482), (9, 2155984), (12, 1616988), (16, 1212741), (18, 1077992), (24, 808494), (36, 538996), (47, 412848), (48, 404247), (61, 318096), (72, 269498), (94, 206424), (122, 159048), (141, 137616), (144, 134749), (183, 106032), (188, 103212), (244, 79524), (282, 68808), (366, 53016), (376, 51606), (423, 45872), (488, 39762), (549, 35344), (564, 34404), (732, 26508), (752, 25803), (846, 22936), (976, 19881), (1098, 17672), (1128, 17202), (1464, 13254), (1692, 11468), (2196, 8836), (2209, 8784), (2256, 8601), (2867, 6768), (2928, 6627), (3384, 5734), (4392, 4418)]