21741840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{30197}}^1$

素因数の和:30216

約数の個数: 60

約数和(自身を含む): 73018764

約数和(自身を除く): 51276924

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 30197, 60394, 90591, 120788, 150985, 181182, 241576, 271773, 301970, 362364, 452955, 483152, 543546, 603940, 724728, 905910, 1087092, 1207880, 1358865, 1449456, 1811820, 2174184, 2415760, 2717730, 3623640, 4348368, 5435460, 7247280, 10870920, 21741840]

約数ペア:

[(1, 21741840), (2, 10870920), (3, 7247280), (4, 5435460), (5, 4348368), (6, 3623640), (8, 2717730), (9, 2415760), (10, 2174184), (12, 1811820), (15, 1449456), (16, 1358865), (18, 1207880), (20, 1087092), (24, 905910), (30, 724728), (36, 603940), (40, 543546), (45, 483152), (48, 452955), (60, 362364), (72, 301970), (80, 271773), (90, 241576), (120, 181182), (144, 150985), (180, 120788), (240, 90591), (360, 60394), (720, 30197)]