21786660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17291}}^1$

素因数の和:17313

約数の個数: 72

約数和(自身を含む): 75531456

約数和(自身を除く): 53744796

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 17291, 34582, 51873, 69164, 86455, 103746, 121037, 155619, 172910, 207492, 242074, 259365, 311238, 345820, 363111, 484148, 518730, 605185, 622476, 726222, 778095, 1037460, 1089333, 1210370, 1452444, 1556190, 1815555, 2178666, 2420740, 3112380, 3631110, 4357332, 5446665, 7262220, 10893330, 21786660]

約数ペア:

[(1, 21786660), (2, 10893330), (3, 7262220), (4, 5446665), (5, 4357332), (6, 3631110), (7, 3112380), (9, 2420740), (10, 2178666), (12, 1815555), (14, 1556190), (15, 1452444), (18, 1210370), (20, 1089333), (21, 1037460), (28, 778095), (30, 726222), (35, 622476), (36, 605185), (42, 518730), (45, 484148), (60, 363111), (63, 345820), (70, 311238), (84, 259365), (90, 242074), (105, 207492), (126, 172910), (140, 155619), (180, 121037), (210, 103746), (252, 86455), (315, 69164), (420, 51873), (630, 34582), (1260, 17291)]