21413798

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^3\times {\mathrm{223}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 38922240

約数和(自身を除く): 17508442

約数列:

[1, 2, 7, 14, 19, 38, 133, 223, 266, 361, 446, 722, 1561, 2527, 3122, 4237, 5054, 6859, 8474, 13718, 29659, 48013, 59318, 80503, 96026, 161006, 563521, 1127042, 1529557, 3059114, 10706899, 21413798]

約数ペア:

[(1, 21413798), (2, 10706899), (7, 3059114), (14, 1529557), (19, 1127042), (38, 563521), (133, 161006), (223, 96026), (266, 80503), (361, 59318), (446, 48013), (722, 29659), (1561, 13718), (2527, 8474), (3122, 6859), (4237, 5054)]