21221045810

素因数分解:

$2^1\times 5^1\times {\mathrm{23893}}^1\times {\mathrm{88817}}^1$

素因数の和:112717

約数の個数: 16

約数和(自身を含む): 38199911256

約数和(自身を除く): 16978865446

約数列:

[1, 2, 5, 10, 23893, 47786, 88817, 119465, 177634, 238930, 444085, 888170, 2122104581, 4244209162, 10610522905, 21221045810]

約数ペア:

[(1, 21221045810), (2, 10610522905), (5, 4244209162), (10, 2122104581), (23893, 888170), (47786, 444085), (88817, 238930), (119465, 177634)]