81309747

素因数分解:

$3^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1\times {\mathrm{1801}}^1$

素因数の和:2054

約数の個数: 16

約数和(自身を含む): 110282400

約数和(自身を除く): 28972653

約数列:

[1, 3, 101, 149, 303, 447, 1801, 5403, 15049, 45147, 181901, 268349, 545703, 805047, 27103249, 81309747]

約数ペア:

[(1, 81309747), (3, 27103249), (101, 805047), (149, 545703), (303, 268349), (447, 181901), (1801, 45147), (5403, 15049)]