21366660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{50873}}^1$

素因数の和:50892

約数の個数: 48

約数和(自身を含む): 68374656

約数和(自身を除く): 47007996

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 50873, 101746, 152619, 203492, 254365, 305238, 356111, 508730, 610476, 712222, 763095, 1017460, 1068333, 1424444, 1526190, 1780555, 2136666, 3052380, 3561110, 4273332, 5341665, 7122220, 10683330, 21366660]

約数ペア:

[(1, 21366660), (2, 10683330), (3, 7122220), (4, 5341665), (5, 4273332), (6, 3561110), (7, 3052380), (10, 2136666), (12, 1780555), (14, 1526190), (15, 1424444), (20, 1068333), (21, 1017460), (28, 763095), (30, 712222), (35, 610476), (42, 508730), (60, 356111), (70, 305238), (84, 254365), (105, 203492), (140, 152619), (210, 101746), (420, 50873)]