21167404

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{1607}}^1$

素因数の和:1737

約数の個数: 24

約数和(自身を含む): 38495520

約数和(自身を除く): 17328116

約数列:

[1, 2, 4, 37, 74, 89, 148, 178, 356, 1607, 3214, 3293, 6428, 6586, 13172, 59459, 118918, 143023, 237836, 286046, 572092, 5291851, 10583702, 21167404]

約数ペア:

[(1, 21167404), (2, 10583702), (4, 5291851), (37, 572092), (74, 286046), (89, 237836), (148, 143023), (178, 118918), (356, 59459), (1607, 13172), (3214, 6586), (3293, 6428)]