291220818

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{990547}}^1$

素因数の和:990566

約数の個数: 24

約数和(自身を含む): 677534832

約数和(自身を除く): 386314014

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 990547, 1981094, 2971641, 5943282, 6933829, 13867658, 20801487, 41602974, 48536803, 97073606, 145610409, 291220818]

約数ペア:

[(1, 291220818), (2, 145610409), (3, 97073606), (6, 48536803), (7, 41602974), (14, 20801487), (21, 13867658), (42, 6933829), (49, 5943282), (98, 2971641), (147, 1981094), (294, 990547)]