20808442

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:286

約数の個数: 32

約数和(自身を含む): 34283520

約数和(自身を除く): 13475078

約数列:

[1, 2, 17, 34, 61, 79, 122, 127, 158, 254, 1037, 1343, 2074, 2159, 2686, 4318, 4819, 7747, 9638, 10033, 15494, 20066, 81923, 131699, 163846, 170561, 263398, 341122, 612013, 1224026, 10404221, 20808442]

約数ペア:

[(1, 20808442), (2, 10404221), (17, 1224026), (34, 612013), (61, 341122), (79, 263398), (122, 170561), (127, 163846), (158, 131699), (254, 81923), (1037, 20066), (1343, 15494), (2074, 10033), (2159, 9638), (2686, 7747), (4318, 4819)]