21398664

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{127373}}^1$

素因数の和:127389

約数の個数: 32

約数和(自身を含む): 61139520

約数和(自身を除く): 39740856

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 127373, 254746, 382119, 509492, 764238, 891611, 1018984, 1528476, 1783222, 2674833, 3056952, 3566444, 5349666, 7132888, 10699332, 21398664]

約数ペア:

[(1, 21398664), (2, 10699332), (3, 7132888), (4, 5349666), (6, 3566444), (7, 3056952), (8, 2674833), (12, 1783222), (14, 1528476), (21, 1018984), (24, 891611), (28, 764238), (42, 509492), (56, 382119), (84, 254746), (168, 127373)]