161658973

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1229}}^1$

素因数の和:1321

約数の個数: 32

約数和(自身を含む): 207820800

約数和(自身を除く): 46161827

約数列:

[1, 7, 19, 23, 43, 133, 161, 301, 437, 817, 989, 1229, 3059, 5719, 6923, 8603, 18791, 23351, 28267, 52847, 131537, 163457, 197869, 369929, 537073, 1004093, 1215481, 3759511, 7028651, 8508367, 23094139, 161658973]

約数ペア:

[(1, 161658973), (7, 23094139), (19, 8508367), (23, 7028651), (43, 3759511), (133, 1215481), (161, 1004093), (301, 537073), (437, 369929), (817, 197869), (989, 163457), (1229, 131537), (3059, 52847), (5719, 28267), (6923, 23351), (8603, 18791)]