21522540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{673}}^1$

素因数の和:739

約数の個数: 96

約数和(自身を含む): 66580416

約数和(自身を除く): 45057876

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 41, 52, 60, 65, 78, 82, 123, 130, 156, 164, 195, 205, 246, 260, 390, 410, 492, 533, 615, 673, 780, 820, 1066, 1230, 1346, 1599, 2019, 2132, 2460, 2665, 2692, 3198, 3365, 4038, 5330, 6396, 6730, 7995, 8076, 8749, 10095, 10660, 13460, 15990, 17498, 20190, 26247, 27593, 31980, 34996, 40380, 43745, 52494, 55186, 82779, 87490, 104988, 110372, 131235, 137965, 165558, 174980, 262470, 275930, 331116, 358709, 413895, 524940, 551860, 717418, 827790, 1076127, 1434836, 1655580, 1793545, 2152254, 3587090, 4304508, 5380635, 7174180, 10761270, 21522540]

約数ペア:

[(1, 21522540), (2, 10761270), (3, 7174180), (4, 5380635), (5, 4304508), (6, 3587090), (10, 2152254), (12, 1793545), (13, 1655580), (15, 1434836), (20, 1076127), (26, 827790), (30, 717418), (39, 551860), (41, 524940), (52, 413895), (60, 358709), (65, 331116), (78, 275930), (82, 262470), (123, 174980), (130, 165558), (156, 137965), (164, 131235), (195, 110372), (205, 104988), (246, 87490), (260, 82779), (390, 55186), (410, 52494), (492, 43745), (533, 40380), (615, 34996), (673, 31980), (780, 27593), (820, 26247), (1066, 20190), (1230, 17498), (1346, 15990), (1599, 13460), (2019, 10660), (2132, 10095), (2460, 8749), (2665, 8076), (2692, 7995), (3198, 6730), (3365, 6396), (4038, 5330)]