21900510

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2797}}^1$

素因数の和:2842

約数の個数: 64

約数和(自身を含む): 60436800

約数和(自身を除く): 38536290

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 29, 30, 45, 54, 58, 87, 90, 135, 145, 174, 261, 270, 290, 435, 522, 783, 870, 1305, 1566, 2610, 2797, 3915, 5594, 7830, 8391, 13985, 16782, 25173, 27970, 41955, 50346, 75519, 81113, 83910, 125865, 151038, 162226, 243339, 251730, 377595, 405565, 486678, 730017, 755190, 811130, 1216695, 1460034, 2190051, 2433390, 3650085, 4380102, 7300170, 10950255, 21900510]

約数ペア:

[(1, 21900510), (2, 10950255), (3, 7300170), (5, 4380102), (6, 3650085), (9, 2433390), (10, 2190051), (15, 1460034), (18, 1216695), (27, 811130), (29, 755190), (30, 730017), (45, 486678), (54, 405565), (58, 377595), (87, 251730), (90, 243339), (135, 162226), (145, 151038), (174, 125865), (261, 83910), (270, 81113), (290, 75519), (435, 50346), (522, 41955), (783, 27970), (870, 25173), (1305, 16782), (1566, 13985), (2610, 8391), (2797, 7830), (3915, 5594)]