31491009

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{331}}^1$

素因数の和:410

約数の個数: 36

約数和(自身を含む): 51429456

約数和(自身を除く): 19938447

約数列:

[1, 3, 9, 11, 31, 33, 93, 99, 279, 331, 341, 961, 993, 1023, 2883, 2979, 3069, 3641, 8649, 10261, 10571, 10923, 30783, 31713, 32769, 92349, 95139, 112871, 318091, 338613, 954273, 1015839, 2862819, 3499001, 10497003, 31491009]

約数ペア:

[(1, 31491009), (3, 10497003), (9, 3499001), (11, 2862819), (31, 1015839), (33, 954273), (93, 338613), (99, 318091), (279, 112871), (331, 95139), (341, 92349), (961, 32769), (993, 31713), (1023, 30783), (2883, 10923), (2979, 10571), (3069, 10261), (3641, 8649)]