21871626920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3823711}}^1$

素因数の和:3823746

約数の個数: 64

約数和(自身を含む): 57814525440

約数和(自身を除く): 35942898520

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 5720, 3823711, 7647422, 15294844, 19118555, 30589688, 38237110, 42060821, 49708243, 76474220, 84121642, 99416486, 152948440, 168243284, 198832972, 210304105, 248541215, 336486568, 397665944, 420608210, 497082430, 546790673, 841216420, 994164860, 1093581346, 1682432840, 1988329720, 2187162692, 2733953365, 4374325384, 5467906730, 10935813460, 21871626920]

約数ペア:

[(1, 21871626920), (2, 10935813460), (4, 5467906730), (5, 4374325384), (8, 2733953365), (10, 2187162692), (11, 1988329720), (13, 1682432840), (20, 1093581346), (22, 994164860), (26, 841216420), (40, 546790673), (44, 497082430), (52, 420608210), (55, 397665944), (65, 336486568), (88, 248541215), (104, 210304105), (110, 198832972), (130, 168243284), (143, 152948440), (220, 99416486), (260, 84121642), (286, 76474220), (440, 49708243), (520, 42060821), (572, 38237110), (715, 30589688), (1144, 19118555), (1430, 15294844), (2860, 7647422), (5720, 3823711)]