21710260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{7591}}^1$

素因数の和:7624

約数の個数: 48

約数和(自身を含む): 53569152

約数和(自身を除く): 31858892

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 7591, 15182, 30364, 37955, 75910, 83501, 98683, 151820, 167002, 197366, 334004, 394732, 417505, 493415, 835010, 986830, 1085513, 1670020, 1973660, 2171026, 4342052, 5427565, 10855130, 21710260]

約数ペア:

[(1, 21710260), (2, 10855130), (4, 5427565), (5, 4342052), (10, 2171026), (11, 1973660), (13, 1670020), (20, 1085513), (22, 986830), (26, 835010), (44, 493415), (52, 417505), (55, 394732), (65, 334004), (110, 197366), (130, 167002), (143, 151820), (220, 98683), (260, 83501), (286, 75910), (572, 37955), (715, 30364), (1430, 15182), (2860, 7591)]