21000906420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26924239}}^1$

素因数の和:26924264

約数の個数: 48

約数和(自身を含む): 63325812480

約数和(自身を除く): 42324906060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 26924239, 53848478, 80772717, 107696956, 134621195, 161545434, 269242390, 323090868, 350015107, 403863585, 538484780, 700030214, 807727170, 1050045321, 1400060428, 1615454340, 1750075535, 2100090642, 3500151070, 4200181284, 5250226605, 7000302140, 10500453210, 21000906420]

約数ペア:

[(1, 21000906420), (2, 10500453210), (3, 7000302140), (4, 5250226605), (5, 4200181284), (6, 3500151070), (10, 2100090642), (12, 1750075535), (13, 1615454340), (15, 1400060428), (20, 1050045321), (26, 807727170), (30, 700030214), (39, 538484780), (52, 403863585), (60, 350015107), (65, 323090868), (78, 269242390), (130, 161545434), (156, 134621195), (195, 107696956), (260, 80772717), (390, 53848478), (780, 26924239)]