31261419

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^3\times {\mathrm{101}}^1$

素因数の和:165

約数の個数: 48

約数和(自身を含む): 55373760

約数和(自身を除く): 24112341

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 101, 119, 153, 289, 303, 357, 707, 867, 909, 1071, 1717, 2023, 2121, 2601, 4913, 5151, 6069, 6363, 12019, 14739, 15453, 18207, 29189, 34391, 36057, 44217, 87567, 103173, 108171, 204323, 262701, 309519, 496213, 612969, 1488639, 1838907, 3473491, 4465917, 10420473, 31261419]

約数ペア:

[(1, 31261419), (3, 10420473), (7, 4465917), (9, 3473491), (17, 1838907), (21, 1488639), (51, 612969), (63, 496213), (101, 309519), (119, 262701), (153, 204323), (289, 108171), (303, 103173), (357, 87567), (707, 44217), (867, 36057), (909, 34391), (1071, 29189), (1717, 18207), (2023, 15453), (2121, 14739), (2601, 12019), (4913, 6363), (5151, 6069)]