21386170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{9677}}^1$

素因数の和:9714

約数の個数: 32

約数和(自身を含む): 43899408

約数和(自身を除く): 22513238

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 9677, 19354, 48385, 96770, 125801, 164509, 251602, 329018, 629005, 822545, 1258010, 1645090, 2138617, 4277234, 10693085, 21386170]

約数ペア:

[(1, 21386170), (2, 10693085), (5, 4277234), (10, 2138617), (13, 1645090), (17, 1258010), (26, 822545), (34, 629005), (65, 329018), (85, 251602), (130, 164509), (170, 125801), (221, 96770), (442, 48385), (1105, 19354), (2210, 9677)]