21198230

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{347}}^1$

素因数の和:544

約数の個数: 32

約数和(自身を含む): 39463200

約数和(自身を除く): 18264970

約数列:

[1, 2, 5, 10, 41, 82, 149, 205, 298, 347, 410, 694, 745, 1490, 1735, 3470, 6109, 12218, 14227, 28454, 30545, 51703, 61090, 71135, 103406, 142270, 258515, 517030, 2119823, 4239646, 10599115, 21198230]

約数ペア:

[(1, 21198230), (2, 10599115), (5, 4239646), (10, 2119823), (41, 517030), (82, 258515), (149, 142270), (205, 103406), (298, 71135), (347, 61090), (410, 51703), (694, 30545), (745, 28454), (1490, 14227), (1735, 12218), (3470, 6109)]