21542984

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{383}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 41472000

約数和(自身を除く): 19929016

約数列:

[1, 2, 4, 8, 79, 89, 158, 178, 316, 356, 383, 632, 712, 766, 1532, 3064, 7031, 14062, 28124, 30257, 34087, 56248, 60514, 68174, 121028, 136348, 242056, 272696, 2692873, 5385746, 10771492, 21542984]

約数ペア:

[(1, 21542984), (2, 10771492), (4, 5385746), (8, 2692873), (79, 272696), (89, 242056), (158, 136348), (178, 121028), (316, 68174), (356, 60514), (383, 56248), (632, 34087), (712, 30257), (766, 28124), (1532, 14062), (3064, 7031)]