20871516

素因数分解:

$2^2\times 3^1\times {\mathrm{61}}^1\times {\mathrm{28513}}^1$

素因数の和:28581

約数の個数: 24

約数和(自身を含む): 49500304

約数和(自身を除く): 28628788

約数列:

[1, 2, 3, 4, 6, 12, 61, 122, 183, 244, 366, 732, 28513, 57026, 85539, 114052, 171078, 342156, 1739293, 3478586, 5217879, 6957172, 10435758, 20871516]

約数ペア:

[(1, 20871516), (2, 10435758), (3, 6957172), (4, 5217879), (6, 3478586), (12, 1739293), (61, 342156), (122, 171078), (183, 114052), (244, 85539), (366, 57026), (732, 28513)]