18942704

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2503}}^1$

素因数の和:2565

約数の個数: 40

約数和(自身を含む): 40985472

約数和(自身を除く): 22042768

約数列:

[1, 2, 4, 8, 11, 16, 22, 43, 44, 86, 88, 172, 176, 344, 473, 688, 946, 1892, 2503, 3784, 5006, 7568, 10012, 20024, 27533, 40048, 55066, 107629, 110132, 215258, 220264, 430516, 440528, 861032, 1183919, 1722064, 2367838, 4735676, 9471352, 18942704]

約数ペア:

[(1, 18942704), (2, 9471352), (4, 4735676), (8, 2367838), (11, 1722064), (16, 1183919), (22, 861032), (43, 440528), (44, 430516), (86, 220264), (88, 215258), (172, 110132), (176, 107629), (344, 55066), (473, 40048), (688, 27533), (946, 20024), (1892, 10012), (2503, 7568), (3784, 5006)]