20957432

素因数分解:

$2^3\times {\mathrm{97}}^1\times {\mathrm{113}}^1\times {\mathrm{239}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 40219200

約数和(自身を除く): 19261768

約数列:

[1, 2, 4, 8, 97, 113, 194, 226, 239, 388, 452, 478, 776, 904, 956, 1912, 10961, 21922, 23183, 27007, 43844, 46366, 54014, 87688, 92732, 108028, 185464, 216056, 2619679, 5239358, 10478716, 20957432]

約数ペア:

[(1, 20957432), (2, 10478716), (4, 5239358), (8, 2619679), (97, 216056), (113, 185464), (194, 108028), (226, 92732), (239, 87688), (388, 54014), (452, 46366), (478, 43844), (776, 27007), (904, 23183), (956, 21922), (1912, 10961)]