21000456815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{557}}^1\times {\mathrm{5743}}^1$

素因数の和:6419

約数の個数: 32

約数和(自身を含む): 27461742336

約数和(自身を除く): 6461285521

約数列:

[1, 5, 13, 65, 101, 505, 557, 1313, 2785, 5743, 6565, 7241, 28715, 36205, 56257, 74659, 281285, 373295, 580043, 731341, 2900215, 3198851, 3656705, 7540559, 15994255, 37702795, 41585063, 207925315, 323083951, 1615419755, 4200091363, 21000456815]

約数ペア:

[(1, 21000456815), (5, 4200091363), (13, 1615419755), (65, 323083951), (101, 207925315), (505, 41585063), (557, 37702795), (1313, 15994255), (2785, 7540559), (5743, 3656705), (6565, 3198851), (7241, 2900215), (28715, 731341), (36205, 580043), (56257, 373295), (74659, 281285)]