19869876

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{42457}}^1$

素因数の和:42480

約数の個数: 36

約数和(自身を含む): 54091492

約数和(自身を除く): 34221616

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 42457, 84914, 127371, 169828, 254742, 382113, 509484, 551941, 764226, 1103882, 1528452, 1655823, 2207764, 3311646, 4967469, 6623292, 9934938, 19869876]

約数ペア:

[(1, 19869876), (2, 9934938), (3, 6623292), (4, 4967469), (6, 3311646), (9, 2207764), (12, 1655823), (13, 1528452), (18, 1103882), (26, 764226), (36, 551941), (39, 509484), (52, 382113), (78, 254742), (117, 169828), (156, 127371), (234, 84914), (468, 42457)]