20978077107

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{214559}}^1$

素因数の和:214707

約数の個数: 32

約数和(自身を含む): 31720550400

約数和(自身を除く): 10742473293

約数列:

[1, 3, 13, 23, 39, 69, 109, 299, 327, 897, 1417, 2507, 4251, 7521, 32591, 97773, 214559, 643677, 2789267, 4934857, 8367801, 14804571, 23386931, 64153141, 70160793, 192459423, 304030103, 537899413, 912090309, 1613698239, 6992692369, 20978077107]

約数ペア:

[(1, 20978077107), (3, 6992692369), (13, 1613698239), (23, 912090309), (39, 537899413), (69, 304030103), (109, 192459423), (299, 70160793), (327, 64153141), (897, 23386931), (1417, 14804571), (2507, 8367801), (4251, 4934857), (7521, 2789267), (32591, 643677), (97773, 214559)]