21803576

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{113}}^1\times {\mathrm{271}}^1$

素因数の和:479

約数の個数: 32

約数和(自身を含む): 41860800

約数和(自身を除く): 20057224

約数列:

[1, 2, 4, 8, 89, 113, 178, 226, 271, 356, 452, 542, 712, 904, 1084, 2168, 10057, 20114, 24119, 30623, 40228, 48238, 61246, 80456, 96476, 122492, 192952, 244984, 2725447, 5450894, 10901788, 21803576]

約数ペア:

[(1, 21803576), (2, 10901788), (4, 5450894), (8, 2725447), (89, 244984), (113, 192952), (178, 122492), (226, 96476), (271, 80456), (356, 61246), (452, 48238), (542, 40228), (712, 30623), (904, 24119), (1084, 20114), (2168, 10057)]