1639887986

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{206483}}^1$

素因数の和:206534

約数の個数: 24

約数和(自身を含む): 2832134544

約数和(自身を除く): 1192246558

約数列:

[1, 2, 11, 19, 22, 38, 209, 361, 418, 722, 3971, 7942, 206483, 412966, 2271313, 3923177, 4542626, 7846354, 43154947, 74540363, 86309894, 149080726, 819943993, 1639887986]

約数ペア:

[(1, 1639887986), (2, 819943993), (11, 149080726), (19, 86309894), (22, 74540363), (38, 43154947), (209, 7846354), (361, 4542626), (418, 3923177), (722, 2271313), (3971, 412966), (7942, 206483)]