21993006

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{1319}}^1$

素因数の和:1728

約数の個数: 32

約数和(自身を含む): 50434560

約数和(自身を除く): 28441554

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 397, 794, 1191, 1319, 2382, 2638, 2779, 3957, 5558, 7914, 8337, 9233, 16674, 18466, 27699, 55398, 523643, 1047286, 1570929, 3141858, 3665501, 7331002, 10996503, 21993006]

約数ペア:

[(1, 21993006), (2, 10996503), (3, 7331002), (6, 3665501), (7, 3141858), (14, 1570929), (21, 1047286), (42, 523643), (397, 55398), (794, 27699), (1191, 18466), (1319, 16674), (2382, 9233), (2638, 8337), (2779, 7914), (3957, 5558)]