21820092

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{863}}^1$

素因数の和:927

約数の個数: 72

約数和(自身を含む): 60673536

約数和(自身を除く): 38853444

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 43, 49, 84, 86, 98, 129, 147, 172, 196, 258, 294, 301, 516, 588, 602, 863, 903, 1204, 1726, 1806, 2107, 2589, 3452, 3612, 4214, 5178, 6041, 6321, 8428, 10356, 12082, 12642, 18123, 24164, 25284, 36246, 37109, 42287, 72492, 74218, 84574, 111327, 126861, 148436, 169148, 222654, 253722, 259763, 445308, 507444, 519526, 779289, 1039052, 1558578, 1818341, 3117156, 3636682, 5455023, 7273364, 10910046, 21820092]

約数ペア:

[(1, 21820092), (2, 10910046), (3, 7273364), (4, 5455023), (6, 3636682), (7, 3117156), (12, 1818341), (14, 1558578), (21, 1039052), (28, 779289), (42, 519526), (43, 507444), (49, 445308), (84, 259763), (86, 253722), (98, 222654), (129, 169148), (147, 148436), (172, 126861), (196, 111327), (258, 84574), (294, 74218), (301, 72492), (516, 42287), (588, 37109), (602, 36246), (863, 25284), (903, 24164), (1204, 18123), (1726, 12642), (1806, 12082), (2107, 10356), (2589, 8428), (3452, 6321), (3612, 6041), (4214, 5178)]