21495384

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^2\times {\mathrm{827}}^1$

素因数の和:877

約数の個数: 72

約数和(自身を含む): 61516260

約数和(自身を除く): 40020876

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 72, 76, 114, 152, 171, 228, 342, 361, 456, 684, 722, 827, 1083, 1368, 1444, 1654, 2166, 2481, 2888, 3249, 3308, 4332, 4962, 6498, 6616, 7443, 8664, 9924, 12996, 14886, 15713, 19848, 25992, 29772, 31426, 47139, 59544, 62852, 94278, 125704, 141417, 188556, 282834, 298547, 377112, 565668, 597094, 895641, 1131336, 1194188, 1791282, 2388376, 2686923, 3582564, 5373846, 7165128, 10747692, 21495384]

約数ペア:

[(1, 21495384), (2, 10747692), (3, 7165128), (4, 5373846), (6, 3582564), (8, 2686923), (9, 2388376), (12, 1791282), (18, 1194188), (19, 1131336), (24, 895641), (36, 597094), (38, 565668), (57, 377112), (72, 298547), (76, 282834), (114, 188556), (152, 141417), (171, 125704), (228, 94278), (342, 62852), (361, 59544), (456, 47139), (684, 31426), (722, 29772), (827, 25992), (1083, 19848), (1368, 15713), (1444, 14886), (1654, 12996), (2166, 9924), (2481, 8664), (2888, 7443), (3249, 6616), (3308, 6498), (4332, 4962)]