20402838

素因数分解:

$2^1\times 3^2\times {\mathrm{109}}^1\times {\mathrm{10399}}^1$

素因数の和:10516

約数の個数: 24

約数和(自身を含む): 44616000

約数和(自身を除く): 24213162

約数列:

[1, 2, 3, 6, 9, 18, 109, 218, 327, 654, 981, 1962, 10399, 20798, 31197, 62394, 93591, 187182, 1133491, 2266982, 3400473, 6800946, 10201419, 20402838]

約数ペア:

[(1, 20402838), (2, 10201419), (3, 6800946), (6, 3400473), (9, 2266982), (18, 1133491), (109, 187182), (218, 93591), (327, 62394), (654, 31197), (981, 20798), (1962, 10399)]