21920978

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{197}}^1$

素因数の和:322

約数の個数: 32

約数和(自身を含む): 35925120

約数和(自身を除く): 14004142

約数列:

[1, 2, 23, 41, 46, 59, 82, 118, 197, 394, 943, 1357, 1886, 2419, 2714, 4531, 4838, 8077, 9062, 11623, 16154, 23246, 55637, 111274, 185771, 267329, 371542, 476543, 534658, 953086, 10960489, 21920978]

約数ペア:

[(1, 21920978), (2, 10960489), (23, 953086), (41, 534658), (46, 476543), (59, 371542), (82, 267329), (118, 185771), (197, 111274), (394, 55637), (943, 23246), (1357, 16154), (1886, 11623), (2419, 9062), (2714, 8077), (4531, 4838)]