21690558

素因数分解:

$2^1\times 3^3\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 50379840

約数和(自身を除く): 28689282

約数列:

[1, 2, 3, 6, 9, 18, 27, 41, 54, 82, 97, 101, 123, 194, 202, 246, 291, 303, 369, 582, 606, 738, 873, 909, 1107, 1746, 1818, 2214, 2619, 2727, 3977, 4141, 5238, 5454, 7954, 8282, 9797, 11931, 12423, 19594, 23862, 24846, 29391, 35793, 37269, 58782, 71586, 74538, 88173, 107379, 111807, 176346, 214758, 223614, 264519, 401677, 529038, 803354, 1205031, 2410062, 3615093, 7230186, 10845279, 21690558]

約数ペア:

[(1, 21690558), (2, 10845279), (3, 7230186), (6, 3615093), (9, 2410062), (18, 1205031), (27, 803354), (41, 529038), (54, 401677), (82, 264519), (97, 223614), (101, 214758), (123, 176346), (194, 111807), (202, 107379), (246, 88173), (291, 74538), (303, 71586), (369, 58782), (582, 37269), (606, 35793), (738, 29391), (873, 24846), (909, 23862), (1107, 19594), (1746, 12423), (1818, 11931), (2214, 9797), (2619, 8282), (2727, 7954), (3977, 5454), (4141, 5238)]