21927780

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{5801}}^1$

素因数の和:5826

約数の個数: 96

約数和(自身を含む): 77978880

約数和(自身を除く): 56051100

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 5801, 11602, 17403, 23204, 29005, 34806, 40607, 52209, 58010, 69612, 81214, 87015, 104418, 116020, 121821, 156627, 162428, 174030, 203035, 208836, 243642, 261045, 313254, 348060, 365463, 406070, 487284, 522090, 609105, 626508, 730926, 783135, 812140, 1044180, 1096389, 1218210, 1461852, 1566270, 1827315, 2192778, 2436420, 3132540, 3654630, 4385556, 5481945, 7309260, 10963890, 21927780]

約数ペア:

[(1, 21927780), (2, 10963890), (3, 7309260), (4, 5481945), (5, 4385556), (6, 3654630), (7, 3132540), (9, 2436420), (10, 2192778), (12, 1827315), (14, 1566270), (15, 1461852), (18, 1218210), (20, 1096389), (21, 1044180), (27, 812140), (28, 783135), (30, 730926), (35, 626508), (36, 609105), (42, 522090), (45, 487284), (54, 406070), (60, 365463), (63, 348060), (70, 313254), (84, 261045), (90, 243642), (105, 208836), (108, 203035), (126, 174030), (135, 162428), (140, 156627), (180, 121821), (189, 116020), (210, 104418), (252, 87015), (270, 81214), (315, 69612), (378, 58010), (420, 52209), (540, 40607), (630, 34806), (756, 29005), (945, 23204), (1260, 17403), (1890, 11602), (3780, 5801)]