217921142

素因数分解:

$2^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1\times {\mathrm{5261}}^1$

素因数の和:5551

約数の個数: 16

約数和(自身を含む): 331506000

約数和(自身を除く): 113584858

約数列:

[1, 2, 139, 149, 278, 298, 5261, 10522, 20711, 41422, 731279, 783889, 1462558, 1567778, 108960571, 217921142]

約数ペア:

[(1, 217921142), (2, 108960571), (139, 1567778), (149, 1462558), (278, 783889), (298, 731279), (5261, 41422), (10522, 20711)]