20843608

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{569}}^1$

素因数の和:835

約数の個数: 32

約数和(自身を含む): 41382000

約数和(自身を除く): 20538392

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 241, 482, 569, 964, 1138, 1928, 2276, 4552, 4579, 9158, 10811, 18316, 21622, 36632, 43244, 86488, 137129, 274258, 548516, 1097032, 2605451, 5210902, 10421804, 20843608]

約数ペア:

[(1, 20843608), (2, 10421804), (4, 5210902), (8, 2605451), (19, 1097032), (38, 548516), (76, 274258), (152, 137129), (241, 86488), (482, 43244), (569, 36632), (964, 21622), (1138, 18316), (1928, 10811), (2276, 9158), (4552, 4579)]