18942736

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{211}}^1$

素因数の和:431

約数の個数: 40

約数和(自身を含む): 38275328

約数和(自身を除く): 19332592

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 181, 211, 248, 362, 422, 496, 724, 844, 1448, 1688, 2896, 3376, 5611, 6541, 11222, 13082, 22444, 26164, 38191, 44888, 52328, 76382, 89776, 104656, 152764, 305528, 611056, 1183921, 2367842, 4735684, 9471368, 18942736]

約数ペア:

[(1, 18942736), (2, 9471368), (4, 4735684), (8, 2367842), (16, 1183921), (31, 611056), (62, 305528), (124, 152764), (181, 104656), (211, 89776), (248, 76382), (362, 52328), (422, 44888), (496, 38191), (724, 26164), (844, 22444), (1448, 13082), (1688, 11222), (2896, 6541), (3376, 5611)]