391457521

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{977}}^1$

素因数の和:1058

約数の個数: 48

約数和(自身を含む): 533823696

約数和(自身を除く): 142366175

約数列:

[1, 7, 13, 17, 37, 49, 91, 119, 221, 259, 481, 629, 637, 833, 977, 1547, 1813, 3367, 4403, 6839, 8177, 10829, 12701, 16609, 23569, 30821, 36149, 47873, 57239, 88907, 116263, 215917, 253043, 400673, 469937, 614533, 622349, 813841, 1511419, 1771301, 3289559, 4301731, 7988929, 10579933, 23026913, 30112117, 55922503, 391457521]

約数ペア:

[(1, 391457521), (7, 55922503), (13, 30112117), (17, 23026913), (37, 10579933), (49, 7988929), (91, 4301731), (119, 3289559), (221, 1771301), (259, 1511419), (481, 813841), (629, 622349), (637, 614533), (833, 469937), (977, 400673), (1547, 253043), (1813, 215917), (3367, 116263), (4403, 88907), (6839, 57239), (8177, 47873), (10829, 36149), (12701, 30821), (16609, 23569)]