64493961

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{161639}}^1$

素因数の和:161668

約数の個数: 16

約数和(自身を含む): 103449600

約数和(自身を除く): 38955639

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 161639, 484917, 1131473, 3071141, 3394419, 9213423, 21497987, 64493961]

約数ペア:

[(1, 64493961), (3, 21497987), (7, 9213423), (19, 3394419), (21, 3071141), (57, 1131473), (133, 484917), (399, 161639)]