21318196

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{3023}}^1$

素因数の和:3111

約数の個数: 24

約数和(自身を含む): 39118464

約数和(自身を除く): 17800268

約数列:

[1, 2, 4, 41, 43, 82, 86, 164, 172, 1763, 3023, 3526, 6046, 7052, 12092, 123943, 129989, 247886, 259978, 495772, 519956, 5329549, 10659098, 21318196]

約数ペア:

[(1, 21318196), (2, 10659098), (4, 5329549), (41, 519956), (43, 495772), (82, 259978), (86, 247886), (164, 129989), (172, 123943), (1763, 12092), (3023, 7052), (3526, 6046)]