20897488

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{76829}}^1$

素因数の和:76854

約数の個数: 20

約数和(自身を含む): 42871140

約数和(自身を除く): 21973652

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 76829, 153658, 307316, 614632, 1229264, 1306093, 2612186, 5224372, 10448744, 20897488]

約数ペア:

[(1, 20897488), (2, 10448744), (4, 5224372), (8, 2612186), (16, 1306093), (17, 1229264), (34, 614632), (68, 307316), (136, 153658), (272, 76829)]