21286986

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{17477}}^1$

素因数の和:17518

約数の個数: 32

約数和(自身を含む): 50336640

約数和(自身を除く): 29049654

約数列:

[1, 2, 3, 6, 7, 14, 21, 29, 42, 58, 87, 174, 203, 406, 609, 1218, 17477, 34954, 52431, 104862, 122339, 244678, 367017, 506833, 734034, 1013666, 1520499, 3040998, 3547831, 7095662, 10643493, 21286986]

約数ペア:

[(1, 21286986), (2, 10643493), (3, 7095662), (6, 3547831), (7, 3040998), (14, 1520499), (21, 1013666), (29, 734034), (42, 506833), (58, 367017), (87, 244678), (174, 122339), (203, 104862), (406, 52431), (609, 34954), (1218, 17477)]