18886576

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{523}}^1$

素因数の和:629

約数の個数: 40

約数和(自身を含む): 38270864

約数和(自身を除く): 19384288

約数列:

[1, 2, 4, 8, 16, 37, 61, 74, 122, 148, 244, 296, 488, 523, 592, 976, 1046, 2092, 2257, 4184, 4514, 8368, 9028, 18056, 19351, 31903, 36112, 38702, 63806, 77404, 127612, 154808, 255224, 309616, 510448, 1180411, 2360822, 4721644, 9443288, 18886576]

約数ペア:

[(1, 18886576), (2, 9443288), (4, 4721644), (8, 2360822), (16, 1180411), (37, 510448), (61, 309616), (74, 255224), (122, 154808), (148, 127612), (244, 77404), (296, 63806), (488, 38702), (523, 36112), (592, 31903), (976, 19351), (1046, 18056), (2092, 9028), (2257, 8368), (4184, 4514)]