21931384

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{463}}^1$

素因数の和:691

約数の個数: 32

約数和(自身を含む): 42762240

約数和(自身を除く): 20830856

約数列:

[1, 2, 4, 8, 31, 62, 124, 191, 248, 382, 463, 764, 926, 1528, 1852, 3704, 5921, 11842, 14353, 23684, 28706, 47368, 57412, 88433, 114824, 176866, 353732, 707464, 2741423, 5482846, 10965692, 21931384]

約数ペア:

[(1, 21931384), (2, 10965692), (4, 5482846), (8, 2741423), (31, 707464), (62, 353732), (124, 176866), (191, 114824), (248, 88433), (382, 57412), (463, 47368), (764, 28706), (926, 23684), (1528, 14353), (1852, 11842), (3704, 5921)]