1778998

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1291}}^1$

素因数の和:1359

約数の個数: 16

約数和(自身を含む): 2930256

約数和(自身を除く): 1151258

約数列:

[1, 2, 13, 26, 53, 106, 689, 1291, 1378, 2582, 16783, 33566, 68423, 136846, 889499, 1778998]

約数ペア:

[(1, 1778998), (2, 889499), (13, 136846), (26, 68423), (53, 33566), (106, 16783), (689, 2582), (1291, 1378)]