19975774

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2677}}^1$

素因数の和:2740

約数の個数: 32

約数和(自身を含む): 37791936

約数和(自身を除く): 17816162

約数列:

[1, 2, 7, 13, 14, 26, 41, 82, 91, 182, 287, 533, 574, 1066, 2677, 3731, 5354, 7462, 18739, 34801, 37478, 69602, 109757, 219514, 243607, 487214, 768299, 1426841, 1536598, 2853682, 9987887, 19975774]

約数ペア:

[(1, 19975774), (2, 9987887), (7, 2853682), (13, 1536598), (14, 1426841), (26, 768299), (41, 487214), (82, 243607), (91, 219514), (182, 109757), (287, 69602), (533, 37478), (574, 34801), (1066, 18739), (2677, 7462), (3731, 5354)]