20317164

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{317}}^1$

素因数の和:447

約数の個数: 72

約数和(自身を含む): 55828080

約数和(自身を除く): 35510916

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 109, 147, 196, 218, 294, 317, 327, 436, 588, 634, 654, 763, 951, 1268, 1308, 1526, 1902, 2219, 2289, 3052, 3804, 4438, 4578, 5341, 6657, 8876, 9156, 10682, 13314, 15533, 16023, 21364, 26628, 31066, 32046, 34553, 46599, 62132, 64092, 69106, 93198, 103659, 138212, 186396, 207318, 241871, 414636, 483742, 725613, 967484, 1451226, 1693097, 2902452, 3386194, 5079291, 6772388, 10158582, 20317164]

約数ペア:

[(1, 20317164), (2, 10158582), (3, 6772388), (4, 5079291), (6, 3386194), (7, 2902452), (12, 1693097), (14, 1451226), (21, 967484), (28, 725613), (42, 483742), (49, 414636), (84, 241871), (98, 207318), (109, 186396), (147, 138212), (196, 103659), (218, 93198), (294, 69106), (317, 64092), (327, 62132), (436, 46599), (588, 34553), (634, 32046), (654, 31066), (763, 26628), (951, 21364), (1268, 16023), (1308, 15533), (1526, 13314), (1902, 10682), (2219, 9156), (2289, 8876), (3052, 6657), (3804, 5341), (4438, 4578)]