20496735

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2099}}^1$

素因数の和:2148

約数の個数: 48

約数和(自身を含む): 41932800

約数和(自身を除く): 21436065

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 45, 63, 93, 105, 155, 217, 279, 315, 465, 651, 1085, 1395, 1953, 2099, 3255, 6297, 9765, 10495, 14693, 18891, 31485, 44079, 65069, 73465, 94455, 132237, 195207, 220395, 325345, 455483, 585621, 661185, 976035, 1366449, 2277415, 2928105, 4099347, 6832245, 20496735]

約数ペア:

[(1, 20496735), (3, 6832245), (5, 4099347), (7, 2928105), (9, 2277415), (15, 1366449), (21, 976035), (31, 661185), (35, 585621), (45, 455483), (63, 325345), (93, 220395), (105, 195207), (155, 132237), (217, 94455), (279, 73465), (315, 65069), (465, 44079), (651, 31485), (1085, 18891), (1395, 14693), (1953, 10495), (2099, 9765), (3255, 6297)]