20996949915

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1\times {\mathrm{38693}}^1$

素因数の和:39124

約数の個数: 48

約数和(自身を含む): 37666287360

約数和(自身を除く): 16669337445

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 389, 465, 1167, 1395, 1945, 3501, 5835, 12059, 17505, 36177, 38693, 60295, 108531, 116079, 180885, 193465, 348237, 542655, 580395, 1199483, 1741185, 3598449, 5997415, 10795347, 15051577, 17992245, 45154731, 53976735, 75257885, 135464193, 225773655, 466598887, 677320965, 1399796661, 2332994435, 4199389983, 6998983305, 20996949915]

約数ペア:

[(1, 20996949915), (3, 6998983305), (5, 4199389983), (9, 2332994435), (15, 1399796661), (31, 677320965), (45, 466598887), (93, 225773655), (155, 135464193), (279, 75257885), (389, 53976735), (465, 45154731), (1167, 17992245), (1395, 15051577), (1945, 10795347), (3501, 5997415), (5835, 3598449), (12059, 1741185), (17505, 1199483), (36177, 580395), (38693, 542655), (60295, 348237), (108531, 193465), (116079, 180885)]