21367780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{277}}^1$

素因数の和:341

約数の個数: 96

約数和(自身を含む): 56044800

約数和(自身を除く): 34677020

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 29, 35, 38, 58, 70, 76, 95, 116, 133, 140, 145, 190, 203, 266, 277, 290, 380, 406, 532, 551, 554, 580, 665, 812, 1015, 1102, 1108, 1330, 1385, 1939, 2030, 2204, 2660, 2755, 2770, 3857, 3878, 4060, 5263, 5510, 5540, 7714, 7756, 8033, 9695, 10526, 11020, 15428, 16066, 19285, 19390, 21052, 26315, 32132, 36841, 38570, 38780, 40165, 52630, 56231, 73682, 77140, 80330, 105260, 112462, 147364, 152627, 160660, 184205, 224924, 281155, 305254, 368410, 562310, 610508, 736820, 763135, 1068389, 1124620, 1526270, 2136778, 3052540, 4273556, 5341945, 10683890, 21367780]

約数ペア:

[(1, 21367780), (2, 10683890), (4, 5341945), (5, 4273556), (7, 3052540), (10, 2136778), (14, 1526270), (19, 1124620), (20, 1068389), (28, 763135), (29, 736820), (35, 610508), (38, 562310), (58, 368410), (70, 305254), (76, 281155), (95, 224924), (116, 184205), (133, 160660), (140, 152627), (145, 147364), (190, 112462), (203, 105260), (266, 80330), (277, 77140), (290, 73682), (380, 56231), (406, 52630), (532, 40165), (551, 38780), (554, 38570), (580, 36841), (665, 32132), (812, 26315), (1015, 21052), (1102, 19390), (1108, 19285), (1330, 16066), (1385, 15428), (1939, 11020), (2030, 10526), (2204, 9695), (2660, 8033), (2755, 7756), (2770, 7714), (3857, 5540), (3878, 5510), (4060, 5263)]