20112222

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{331}}^1$

素因数の和:409

約数の個数: 64

約数和(自身を含む): 46851840

約数和(自身を除く): 26739618

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 41, 57, 78, 82, 114, 123, 246, 247, 331, 494, 533, 662, 741, 779, 993, 1066, 1482, 1558, 1599, 1986, 2337, 3198, 4303, 4674, 6289, 8606, 10127, 12578, 12909, 13571, 18867, 20254, 25818, 27142, 30381, 37734, 40713, 60762, 81426, 81757, 163514, 176423, 245271, 257849, 352846, 490542, 515698, 529269, 773547, 1058538, 1547094, 3352037, 6704074, 10056111, 20112222]

約数ペア:

[(1, 20112222), (2, 10056111), (3, 6704074), (6, 3352037), (13, 1547094), (19, 1058538), (26, 773547), (38, 529269), (39, 515698), (41, 490542), (57, 352846), (78, 257849), (82, 245271), (114, 176423), (123, 163514), (246, 81757), (247, 81426), (331, 60762), (494, 40713), (533, 37734), (662, 30381), (741, 27142), (779, 25818), (993, 20254), (1066, 18867), (1482, 13571), (1558, 12909), (1599, 12578), (1986, 10127), (2337, 8606), (3198, 6289), (4303, 4674)]