21112030

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{20903}}^1$

素因数の和:21011

約数の個数: 16

約数和(自身を含む): 38379744

約数和(自身を除く): 17267714

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 20903, 41806, 104515, 209030, 2111203, 4222406, 10556015, 21112030]

約数ペア:

[(1, 21112030), (2, 10556015), (5, 4222406), (10, 2111203), (101, 209030), (202, 104515), (505, 41806), (1010, 20903)]