20987112972

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{8353}}^1\times {\mathrm{4273}}^1$

素因数の和:12647

約数の個数: 72

約数和(自身を含む): 56985173616

約数和(自身を除く): 35998060644

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 588, 4273, 8353, 8546, 12819, 16706, 17092, 25059, 25638, 29911, 33412, 50118, 51276, 58471, 59822, 89733, 100236, 116942, 119644, 175413, 179466, 209377, 233884, 350826, 358932, 409297, 418754, 628131, 701652, 818594, 837508, 1227891, 1256262, 1637188, 2455782, 2512524, 4911564, 35692369, 71384738, 107077107, 142769476, 214154214, 249846583, 428308428, 499693166, 749539749, 999386332, 1499079498, 1748926081, 2998158996, 3497852162, 5246778243, 6995704324, 10493556486, 20987112972]

約数ペア:

[(1, 20987112972), (2, 10493556486), (3, 6995704324), (4, 5246778243), (6, 3497852162), (7, 2998158996), (12, 1748926081), (14, 1499079498), (21, 999386332), (28, 749539749), (42, 499693166), (49, 428308428), (84, 249846583), (98, 214154214), (147, 142769476), (196, 107077107), (294, 71384738), (588, 35692369), (4273, 4911564), (8353, 2512524), (8546, 2455782), (12819, 1637188), (16706, 1256262), (17092, 1227891), (25059, 837508), (25638, 818594), (29911, 701652), (33412, 628131), (50118, 418754), (51276, 409297), (58471, 358932), (59822, 350826), (89733, 233884), (100236, 209377), (116942, 179466), (119644, 175413)]