20921390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{17581}}^1$

素因数の和:17612

約数の個数: 32

約数和(自身を含む): 45572544

約数和(自身を除く): 24651154

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 119, 170, 238, 595, 1190, 17581, 35162, 87905, 123067, 175810, 246134, 298877, 597754, 615335, 1230670, 1494385, 2092139, 2988770, 4184278, 10460695, 20921390]

約数ペア:

[(1, 20921390), (2, 10460695), (5, 4184278), (7, 2988770), (10, 2092139), (14, 1494385), (17, 1230670), (34, 615335), (35, 597754), (70, 298877), (85, 246134), (119, 175810), (170, 123067), (238, 87905), (595, 35162), (1190, 17581)]