21496826

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{179}}^1$

素因数の和:374

約数の個数: 32

約数和(自身を含む): 36288000

約数和(自身を除く): 14791174

約数列:

[1, 2, 13, 26, 31, 62, 149, 179, 298, 358, 403, 806, 1937, 2327, 3874, 4619, 4654, 5549, 9238, 11098, 26671, 53342, 60047, 72137, 120094, 144274, 346723, 693446, 826801, 1653602, 10748413, 21496826]

約数ペア:

[(1, 21496826), (2, 10748413), (13, 1653602), (26, 826801), (31, 693446), (62, 346723), (149, 144274), (179, 120094), (298, 72137), (358, 60047), (403, 53342), (806, 26671), (1937, 11098), (2327, 9238), (3874, 5549), (4619, 4654)]