21017646

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{89819}}^1$

素因数の和:89840

約数の個数: 24

約数和(自身を含む): 49041720

約数和(自身を除く): 28024074

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 89819, 179638, 269457, 538914, 808371, 1167647, 1616742, 2335294, 3502941, 7005882, 10508823, 21017646]

約数ペア:

[(1, 21017646), (2, 10508823), (3, 7005882), (6, 3502941), (9, 2335294), (13, 1616742), (18, 1167647), (26, 808371), (39, 538914), (78, 269457), (117, 179638), (234, 89819)]