20808897828

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{660097}}^1$

素因数の和:660212

約数の個数: 48

約数和(自身を含む): 50568787584

約数和(自身を除く): 29759889756

約数列:

[1, 2, 3, 4, 6, 12, 37, 71, 74, 111, 142, 148, 213, 222, 284, 426, 444, 852, 2627, 5254, 7881, 10508, 15762, 31524, 660097, 1320194, 1980291, 2640388, 3960582, 7921164, 24423589, 46866887, 48847178, 73270767, 93733774, 97694356, 140600661, 146541534, 187467548, 281201322, 293083068, 562402644, 1734074819, 3468149638, 5202224457, 6936299276, 10404448914, 20808897828]

約数ペア:

[(1, 20808897828), (2, 10404448914), (3, 6936299276), (4, 5202224457), (6, 3468149638), (12, 1734074819), (37, 562402644), (71, 293083068), (74, 281201322), (111, 187467548), (142, 146541534), (148, 140600661), (213, 97694356), (222, 93733774), (284, 73270767), (426, 48847178), (444, 46866887), (852, 24423589), (2627, 7921164), (5254, 3960582), (7881, 2640388), (10508, 1980291), (15762, 1320194), (31524, 660097)]