20302947

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:193

約数の個数: 64

約数和(自身を含む): 37324800

約数和(自身を除く): 17021853

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 71, 89, 119, 153, 189, 213, 267, 357, 459, 497, 623, 639, 801, 1071, 1207, 1491, 1513, 1869, 1917, 2403, 3213, 3621, 4473, 4539, 5607, 6319, 8449, 10591, 10863, 13419, 13617, 16821, 18957, 25347, 31773, 32589, 40851, 44233, 56871, 76041, 95319, 107423, 132699, 170613, 228123, 285957, 322269, 398097, 751961, 966807, 1194291, 2255883, 2900421, 6767649, 20302947]

約数ペア:

[(1, 20302947), (3, 6767649), (7, 2900421), (9, 2255883), (17, 1194291), (21, 966807), (27, 751961), (51, 398097), (63, 322269), (71, 285957), (89, 228123), (119, 170613), (153, 132699), (189, 107423), (213, 95319), (267, 76041), (357, 56871), (459, 44233), (497, 40851), (623, 32589), (639, 31773), (801, 25347), (1071, 18957), (1207, 16821), (1491, 13617), (1513, 13419), (1869, 10863), (1917, 10591), (2403, 8449), (3213, 6319), (3621, 5607), (4473, 4539)]