9990561

素因数分解:

$3^1\times 7^4\times {\mathrm{19}}^1\times {\mathrm{73}}^1$

素因数の和:123

約数の個数: 40

約数和(自身を含む): 16581920

約数和(自身を除く): 6591359

約数列:

[1, 3, 7, 19, 21, 49, 57, 73, 133, 147, 219, 343, 399, 511, 931, 1029, 1387, 1533, 2401, 2793, 3577, 4161, 6517, 7203, 9709, 10731, 19551, 25039, 29127, 45619, 67963, 75117, 136857, 175273, 203889, 475741, 525819, 1427223, 3330187, 9990561]

約数ペア:

[(1, 9990561), (3, 3330187), (7, 1427223), (19, 525819), (21, 475741), (49, 203889), (57, 175273), (73, 136857), (133, 75117), (147, 67963), (219, 45619), (343, 29127), (399, 25039), (511, 19551), (931, 10731), (1029, 9709), (1387, 7203), (1533, 6517), (2401, 4161), (2793, 3577)]