389625747

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{6199}}^1$

素因数の和:6323

約数の個数: 32

約数和(自身を含む): 616627200

約数和(自身を除く): 227001453

約数列:

[1, 3, 7, 21, 41, 73, 123, 219, 287, 511, 861, 1533, 2993, 6199, 8979, 18597, 20951, 43393, 62853, 130179, 254159, 452527, 762477, 1357581, 1779113, 3167689, 5337339, 9503067, 18553607, 55660821, 129875249, 389625747]

約数ペア:

[(1, 389625747), (3, 129875249), (7, 55660821), (21, 18553607), (41, 9503067), (73, 5337339), (123, 3167689), (219, 1779113), (287, 1357581), (511, 762477), (861, 452527), (1533, 254159), (2993, 130179), (6199, 62853), (8979, 43393), (18597, 20951)]