19977426

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{158551}}^1$

素因数の和:158566

約数の個数: 24

約数和(自身を含む): 49468224

約数和(自身を除く): 29490798

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 158551, 317102, 475653, 951306, 1109857, 1426959, 2219714, 2853918, 3329571, 6659142, 9988713, 19977426]

約数ペア:

[(1, 19977426), (2, 9988713), (3, 6659142), (6, 3329571), (7, 2853918), (9, 2219714), (14, 1426959), (18, 1109857), (21, 951306), (42, 475653), (63, 317102), (126, 158551)]