20210505

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2711}}^1$

素因数の和:2797

約数の個数: 32

約数和(自身を含む): 37490688

約数和(自身を除く): 17280183

約数列:

[1, 3, 5, 7, 15, 21, 35, 71, 105, 213, 355, 497, 1065, 1491, 2485, 2711, 7455, 8133, 13555, 18977, 40665, 56931, 94885, 192481, 284655, 577443, 962405, 1347367, 2887215, 4042101, 6736835, 20210505]

約数ペア:

[(1, 20210505), (3, 6736835), (5, 4042101), (7, 2887215), (15, 1347367), (21, 962405), (35, 577443), (71, 284655), (105, 192481), (213, 94885), (355, 56931), (497, 40665), (1065, 18977), (1491, 13555), (2485, 8133), (2711, 7455)]