19912646

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{233}}^1$

素因数の和:440

約数の個数: 32

約数和(自身を含む): 34201440

約数和(自身を除く): 14288794

約数列:

[1, 2, 13, 19, 26, 38, 173, 233, 247, 346, 466, 494, 2249, 3029, 3287, 4427, 4498, 6058, 6574, 8854, 40309, 42731, 57551, 80618, 85462, 115102, 524017, 765871, 1048034, 1531742, 9956323, 19912646]

約数ペア:

[(1, 19912646), (2, 9956323), (13, 1531742), (19, 1048034), (26, 765871), (38, 524017), (173, 115102), (233, 85462), (247, 80618), (346, 57551), (466, 42731), (494, 40309), (2249, 8854), (3029, 6574), (3287, 6058), (4427, 4498)]