20549487

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{823}}^1$

素因数の和:903

約数の個数: 32

約数和(自身を含む): 33223680

約数和(自身を除く): 12674193

約数列:

[1, 3, 7, 21, 29, 41, 87, 123, 203, 287, 609, 823, 861, 1189, 2469, 3567, 5761, 8323, 17283, 23867, 24969, 33743, 71601, 101229, 167069, 236201, 501207, 708603, 978547, 2935641, 6849829, 20549487]

約数ペア:

[(1, 20549487), (3, 6849829), (7, 2935641), (21, 978547), (29, 708603), (41, 501207), (87, 236201), (123, 167069), (203, 101229), (287, 71601), (609, 33743), (823, 24969), (861, 23867), (1189, 17283), (2469, 8323), (3567, 5761)]