213440830

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{349903}}^1$

素因数の和:349971

約数の個数: 16

約数和(自身を含む): 390492864

約数和(自身を除く): 177052034

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 349903, 699806, 1749515, 3499030, 21344083, 42688166, 106720415, 213440830]

約数ペア:

[(1, 213440830), (2, 106720415), (5, 42688166), (10, 21344083), (61, 3499030), (122, 1749515), (305, 699806), (610, 349903)]