197996967

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{18379}}^1$

素因数の和:18417

約数の個数: 40

約数和(自身を含む): 355836800

約数和(自身を除く): 157839833

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 133, 171, 189, 399, 513, 567, 1197, 1539, 3591, 10773, 18379, 55137, 128653, 165411, 349201, 385959, 496233, 1047603, 1157877, 1488699, 2444407, 3142809, 3473631, 7333221, 9428427, 10420893, 21999663, 28285281, 65998989, 197996967]

約数ペア:

[(1, 197996967), (3, 65998989), (7, 28285281), (9, 21999663), (19, 10420893), (21, 9428427), (27, 7333221), (57, 3473631), (63, 3142809), (81, 2444407), (133, 1488699), (171, 1157877), (189, 1047603), (399, 496233), (513, 385959), (567, 349201), (1197, 165411), (1539, 128653), (3591, 55137), (10773, 18379)]