21780276

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{8941}}^1$

素因数の和:8984

約数の個数: 48

約数和(自身を含む): 60090240

約数和(自身を除く): 38309964

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 29, 42, 58, 84, 87, 116, 174, 203, 348, 406, 609, 812, 1218, 2436, 8941, 17882, 26823, 35764, 53646, 62587, 107292, 125174, 187761, 250348, 259289, 375522, 518578, 751044, 777867, 1037156, 1555734, 1815023, 3111468, 3630046, 5445069, 7260092, 10890138, 21780276]

約数ペア:

[(1, 21780276), (2, 10890138), (3, 7260092), (4, 5445069), (6, 3630046), (7, 3111468), (12, 1815023), (14, 1555734), (21, 1037156), (28, 777867), (29, 751044), (42, 518578), (58, 375522), (84, 259289), (87, 250348), (116, 187761), (174, 125174), (203, 107292), (348, 62587), (406, 53646), (609, 35764), (812, 26823), (1218, 17882), (2436, 8941)]