19851388

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{1187}}^1$

素因数の和:1341

約数の個数: 24

約数和(自身を含む): 36024912

約数和(自身を除く): 16173524

約数列:

[1, 2, 4, 37, 74, 113, 148, 226, 452, 1187, 2374, 4181, 4748, 8362, 16724, 43919, 87838, 134131, 175676, 268262, 536524, 4962847, 9925694, 19851388]

約数ペア:

[(1, 19851388), (2, 9925694), (4, 4962847), (37, 536524), (74, 268262), (113, 175676), (148, 134131), (226, 87838), (452, 43919), (1187, 16724), (2374, 8362), (4181, 4748)]