21910920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1163}}^1$

素因数の和:1334

約数の個数: 64

約数和(自身を含む): 66208320

約数和(自身を除く): 44297400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 157, 314, 471, 628, 785, 942, 1163, 1256, 1570, 1884, 2326, 2355, 3140, 3489, 3768, 4652, 4710, 5815, 6280, 6978, 9304, 9420, 11630, 13956, 17445, 18840, 23260, 27912, 34890, 46520, 69780, 139560, 182591, 365182, 547773, 730364, 912955, 1095546, 1460728, 1825910, 2191092, 2738865, 3651820, 4382184, 5477730, 7303640, 10955460, 21910920]

約数ペア:

[(1, 21910920), (2, 10955460), (3, 7303640), (4, 5477730), (5, 4382184), (6, 3651820), (8, 2738865), (10, 2191092), (12, 1825910), (15, 1460728), (20, 1095546), (24, 912955), (30, 730364), (40, 547773), (60, 365182), (120, 182591), (157, 139560), (314, 69780), (471, 46520), (628, 34890), (785, 27912), (942, 23260), (1163, 18840), (1256, 17445), (1570, 13956), (1884, 11630), (2326, 9420), (2355, 9304), (3140, 6978), (3489, 6280), (3768, 5815), (4652, 4710)]