21370830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1481}}^1$

素因数の和:1541

約数の個数: 64

約数和(自身を含む): 56766528

約数和(自身を除く): 35395698

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 37, 39, 65, 74, 78, 111, 130, 185, 195, 222, 370, 390, 481, 555, 962, 1110, 1443, 1481, 2405, 2886, 2962, 4443, 4810, 7215, 7405, 8886, 14430, 14810, 19253, 22215, 38506, 44430, 54797, 57759, 96265, 109594, 115518, 164391, 192530, 273985, 288795, 328782, 547970, 577590, 712361, 821955, 1424722, 1643910, 2137083, 3561805, 4274166, 7123610, 10685415, 21370830]

約数ペア:

[(1, 21370830), (2, 10685415), (3, 7123610), (5, 4274166), (6, 3561805), (10, 2137083), (13, 1643910), (15, 1424722), (26, 821955), (30, 712361), (37, 577590), (39, 547970), (65, 328782), (74, 288795), (78, 273985), (111, 192530), (130, 164391), (185, 115518), (195, 109594), (222, 96265), (370, 57759), (390, 54797), (481, 44430), (555, 38506), (962, 22215), (1110, 19253), (1443, 14810), (1481, 14430), (2405, 8886), (2886, 7405), (2962, 7215), (4443, 4810)]