21097582

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:352

約数の個数: 32

約数和(自身を含む): 35712000

約数和(自身を除く): 14614418

約数列:

[1, 2, 11, 22, 61, 79, 122, 158, 199, 398, 671, 869, 1342, 1738, 2189, 4378, 4819, 9638, 12139, 15721, 24278, 31442, 53009, 106018, 133529, 172931, 267058, 345862, 958981, 1917962, 10548791, 21097582]

約数ペア:

[(1, 21097582), (2, 10548791), (11, 1917962), (22, 958981), (61, 345862), (79, 267058), (122, 172931), (158, 133529), (199, 106018), (398, 53009), (671, 31442), (869, 24278), (1342, 15721), (1738, 12139), (2189, 9638), (4378, 4819)]