21994470

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^2$

素因数の和:151

約数の個数: 96

約数和(自身を含む): 61840800

約数和(自身を除く): 39846330

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 29, 30, 45, 53, 54, 58, 87, 90, 106, 135, 145, 159, 174, 261, 265, 270, 290, 318, 435, 477, 522, 530, 783, 795, 870, 954, 1305, 1431, 1537, 1566, 1590, 2385, 2610, 2809, 2862, 3074, 3915, 4611, 4770, 5618, 7155, 7685, 7830, 8427, 9222, 13833, 14045, 14310, 15370, 16854, 23055, 25281, 27666, 28090, 41499, 42135, 46110, 50562, 69165, 75843, 81461, 82998, 84270, 126405, 138330, 151686, 162922, 207495, 244383, 252810, 379215, 407305, 414990, 488766, 733149, 758430, 814610, 1221915, 1466298, 2199447, 2443830, 3665745, 4398894, 7331490, 10997235, 21994470]

約数ペア:

[(1, 21994470), (2, 10997235), (3, 7331490), (5, 4398894), (6, 3665745), (9, 2443830), (10, 2199447), (15, 1466298), (18, 1221915), (27, 814610), (29, 758430), (30, 733149), (45, 488766), (53, 414990), (54, 407305), (58, 379215), (87, 252810), (90, 244383), (106, 207495), (135, 162922), (145, 151686), (159, 138330), (174, 126405), (261, 84270), (265, 82998), (270, 81461), (290, 75843), (318, 69165), (435, 50562), (477, 46110), (522, 42135), (530, 41499), (783, 28090), (795, 27666), (870, 25281), (954, 23055), (1305, 16854), (1431, 15370), (1537, 14310), (1566, 14045), (1590, 13833), (2385, 9222), (2610, 8427), (2809, 7830), (2862, 7685), (3074, 7155), (3915, 5618), (4611, 4770)]