81049773

素因数分解:

$3^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 130605696

約数和(自身を除く): 49555923

約数列:

[1, 3, 7, 21, 49, 53, 101, 103, 147, 159, 303, 309, 371, 707, 721, 1113, 2121, 2163, 2597, 4949, 5047, 5353, 5459, 7791, 10403, 14847, 15141, 16059, 16377, 31209, 37471, 38213, 72821, 112413, 114639, 218463, 262297, 267491, 509747, 551359, 786891, 802473, 1529241, 1654077, 3859513, 11578539, 27016591, 81049773]

約数ペア:

[(1, 81049773), (3, 27016591), (7, 11578539), (21, 3859513), (49, 1654077), (53, 1529241), (101, 802473), (103, 786891), (147, 551359), (159, 509747), (303, 267491), (309, 262297), (371, 218463), (707, 114639), (721, 112413), (1113, 72821), (2121, 38213), (2163, 37471), (2597, 31209), (4949, 16377), (5047, 16059), (5353, 15141), (5459, 14847), (7791, 10403)]