28118097

素因数分解:

$3^4\times 7^1\times {\mathrm{101}}^1\times {\mathrm{491}}^1$

素因数の和:611

約数の個数: 40

約数和(自身を含む): 48578112

約数和(自身を除く): 20460015

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 101, 189, 303, 491, 567, 707, 909, 1473, 2121, 2727, 3437, 4419, 6363, 8181, 10311, 13257, 19089, 30933, 39771, 49591, 57267, 92799, 148773, 278397, 347137, 446319, 1041411, 1338957, 3124233, 4016871, 9372699, 28118097]

約数ペア:

[(1, 28118097), (3, 9372699), (7, 4016871), (9, 3124233), (21, 1338957), (27, 1041411), (63, 446319), (81, 347137), (101, 278397), (189, 148773), (303, 92799), (491, 57267), (567, 49591), (707, 39771), (909, 30933), (1473, 19089), (2121, 13257), (2727, 10311), (3437, 8181), (4419, 6363)]