21464090

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{69239}}^1$

素因数の和:69277

約数の個数: 16

約数和(自身を含む): 39882240

約数和(自身を除く): 18418150

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 69239, 138478, 346195, 692390, 2146409, 4292818, 10732045, 21464090]

約数ペア:

[(1, 21464090), (2, 10732045), (5, 4292818), (10, 2146409), (31, 692390), (62, 346195), (155, 138478), (310, 69239)]