21350220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1$

素因数の和:239

約数の個数: 96

約数和(自身を含む): 62512128

約数和(自身を除く): 41161908

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 67, 94, 113, 134, 141, 188, 201, 226, 235, 268, 282, 335, 339, 402, 452, 470, 564, 565, 670, 678, 705, 804, 940, 1005, 1130, 1340, 1356, 1410, 1695, 2010, 2260, 2820, 3149, 3390, 4020, 5311, 6298, 6780, 7571, 9447, 10622, 12596, 15142, 15745, 15933, 18894, 21244, 22713, 26555, 30284, 31490, 31866, 37788, 37855, 45426, 47235, 53110, 62980, 63732, 75710, 79665, 90852, 94470, 106220, 113565, 151420, 159330, 188940, 227130, 318660, 355837, 454260, 711674, 1067511, 1423348, 1779185, 2135022, 3558370, 4270044, 5337555, 7116740, 10675110, 21350220]

約数ペア:

[(1, 21350220), (2, 10675110), (3, 7116740), (4, 5337555), (5, 4270044), (6, 3558370), (10, 2135022), (12, 1779185), (15, 1423348), (20, 1067511), (30, 711674), (47, 454260), (60, 355837), (67, 318660), (94, 227130), (113, 188940), (134, 159330), (141, 151420), (188, 113565), (201, 106220), (226, 94470), (235, 90852), (268, 79665), (282, 75710), (335, 63732), (339, 62980), (402, 53110), (452, 47235), (470, 45426), (564, 37855), (565, 37788), (670, 31866), (678, 31490), (705, 30284), (804, 26555), (940, 22713), (1005, 21244), (1130, 18894), (1340, 15933), (1356, 15745), (1410, 15142), (1695, 12596), (2010, 10622), (2260, 9447), (2820, 7571), (3149, 6780), (3390, 6298), (4020, 5311)]