21523560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{2161}}^1$

素因数の和:2258

約数の個数: 64

約数和(自身を含む): 65378880

約数和(自身を除く): 43855320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 83, 120, 166, 249, 332, 415, 498, 664, 830, 996, 1245, 1660, 1992, 2161, 2490, 3320, 4322, 4980, 6483, 8644, 9960, 10805, 12966, 17288, 21610, 25932, 32415, 43220, 51864, 64830, 86440, 129660, 179363, 259320, 358726, 538089, 717452, 896815, 1076178, 1434904, 1793630, 2152356, 2690445, 3587260, 4304712, 5380890, 7174520, 10761780, 21523560]

約数ペア:

[(1, 21523560), (2, 10761780), (3, 7174520), (4, 5380890), (5, 4304712), (6, 3587260), (8, 2690445), (10, 2152356), (12, 1793630), (15, 1434904), (20, 1076178), (24, 896815), (30, 717452), (40, 538089), (60, 358726), (83, 259320), (120, 179363), (166, 129660), (249, 86440), (332, 64830), (415, 51864), (498, 43220), (664, 32415), (830, 25932), (996, 21610), (1245, 17288), (1660, 12966), (1992, 10805), (2161, 9960), (2490, 8644), (3320, 6483), (4322, 4980)]