20993104

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{659}}^1$

素因数の和:859

約数の個数: 40

約数和(自身を含む): 44684640

約数和(自身を除く): 23691536

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 181, 362, 659, 724, 1318, 1448, 1991, 2636, 2896, 3982, 5272, 7249, 7964, 10544, 14498, 15928, 28996, 31856, 57992, 115984, 119279, 238558, 477116, 954232, 1312069, 1908464, 2624138, 5248276, 10496552, 20993104]

約数ペア:

[(1, 20993104), (2, 10496552), (4, 5248276), (8, 2624138), (11, 1908464), (16, 1312069), (22, 954232), (44, 477116), (88, 238558), (176, 119279), (181, 115984), (362, 57992), (659, 31856), (724, 28996), (1318, 15928), (1448, 14498), (1991, 10544), (2636, 7964), (2896, 7249), (3982, 5272)]