21316810

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{3389}}^1$

素因数の和:3450

約数の個数: 32

約数和(自身を含む): 41737680

約数和(自身を除く): 20420870

約数列:

[1, 2, 5, 10, 17, 34, 37, 74, 85, 170, 185, 370, 629, 1258, 3145, 3389, 6290, 6778, 16945, 33890, 57613, 115226, 125393, 250786, 288065, 576130, 626965, 1253930, 2131681, 4263362, 10658405, 21316810]

約数ペア:

[(1, 21316810), (2, 10658405), (5, 4263362), (10, 2131681), (17, 1253930), (34, 626965), (37, 576130), (74, 288065), (85, 250786), (170, 125393), (185, 115226), (370, 57613), (629, 33890), (1258, 16945), (3145, 6778), (3389, 6290)]