12981591

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:101

約数の個数: 72

約数和(自身を含む): 24520704

約数和(自身を除く): 11539113

約数列:

[1, 3, 7, 9, 17, 21, 23, 31, 51, 63, 69, 93, 119, 153, 161, 207, 217, 279, 289, 357, 391, 483, 527, 651, 713, 867, 1071, 1173, 1449, 1581, 1953, 2023, 2139, 2601, 2737, 3519, 3689, 4743, 4991, 6069, 6417, 6647, 8211, 8959, 11067, 12121, 14973, 18207, 19941, 24633, 26877, 33201, 36363, 44919, 46529, 59823, 62713, 80631, 84847, 109089, 139587, 188139, 206057, 254541, 418761, 564417, 618171, 763623, 1442399, 1854513, 4327197, 12981591]

約数ペア:

[(1, 12981591), (3, 4327197), (7, 1854513), (9, 1442399), (17, 763623), (21, 618171), (23, 564417), (31, 418761), (51, 254541), (63, 206057), (69, 188139), (93, 139587), (119, 109089), (153, 84847), (161, 80631), (207, 62713), (217, 59823), (279, 46529), (289, 44919), (357, 36363), (391, 33201), (483, 26877), (527, 24633), (651, 19941), (713, 18207), (867, 14973), (1071, 12121), (1173, 11067), (1449, 8959), (1581, 8211), (1953, 6647), (2023, 6417), (2139, 6069), (2601, 4991), (2737, 4743), (3519, 3689)]