21965754

素因数分解:

$2^1\times 3^1\times {\mathrm{409}}^1\times {\mathrm{8951}}^1$

素因数の和:9365

約数の個数: 16

約数和(自身を含む): 44043840

約数和(自身を除く): 22078086

約数列:

[1, 2, 3, 6, 409, 818, 1227, 2454, 8951, 17902, 26853, 53706, 3660959, 7321918, 10982877, 21965754]

約数ペア:

[(1, 21965754), (2, 10982877), (3, 7321918), (6, 3660959), (409, 53706), (818, 26853), (1227, 17902), (2454, 8951)]