20709416

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28447}}^1$

素因数の和:28473

約数の個数: 32

約数和(自身を含む): 47792640

約数和(自身を除く): 27083224

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 28447, 56894, 113788, 199129, 227576, 369811, 398258, 739622, 796516, 1479244, 1593032, 2588677, 2958488, 5177354, 10354708, 20709416]

約数ペア:

[(1, 20709416), (2, 10354708), (4, 5177354), (7, 2958488), (8, 2588677), (13, 1593032), (14, 1479244), (26, 796516), (28, 739622), (52, 398258), (56, 369811), (91, 227576), (104, 199129), (182, 113788), (364, 56894), (728, 28447)]