20642516

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{659}}^1$

素因数の和:895

約数の個数: 24

約数和(自身を含む): 37255680

約数和(自身を除く): 16613164

約数列:

[1, 2, 4, 41, 82, 164, 191, 382, 659, 764, 1318, 2636, 7831, 15662, 27019, 31324, 54038, 108076, 125869, 251738, 503476, 5160629, 10321258, 20642516]

約数ペア:

[(1, 20642516), (2, 10321258), (4, 5160629), (41, 503476), (82, 251738), (164, 125869), (191, 108076), (382, 54038), (659, 31324), (764, 27019), (1318, 15662), (2636, 7831)]