20613201

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{269}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 32659200

約数和(自身を除く): 12045999

約数列:

[1, 3, 7, 21, 41, 89, 123, 267, 269, 287, 623, 807, 861, 1869, 1883, 3649, 5649, 10947, 11029, 23941, 25543, 33087, 71823, 76629, 77203, 167587, 231609, 502761, 981581, 2944743, 6871067, 20613201]

約数ペア:

[(1, 20613201), (3, 6871067), (7, 2944743), (21, 981581), (41, 502761), (89, 231609), (123, 167587), (267, 77203), (269, 76629), (287, 71823), (623, 33087), (807, 25543), (861, 23941), (1869, 11029), (1883, 10947), (3649, 5649)]