2021164990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{619}}^1\times {\mathrm{25117}}^1$

素因数の和:25756

約数の個数: 32

約数和(自身を含む): 3924436320

約数和(自身を除く): 1903271330

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 619, 1238, 3095, 6190, 8047, 16094, 25117, 40235, 50234, 80470, 125585, 251170, 326521, 653042, 1632605, 3265210, 15547423, 31094846, 77737115, 155474230, 202116499, 404232998, 1010582495, 2021164990]

約数ペア:

[(1, 2021164990), (2, 1010582495), (5, 404232998), (10, 202116499), (13, 155474230), (26, 77737115), (65, 31094846), (130, 15547423), (619, 3265210), (1238, 1632605), (3095, 653042), (6190, 326521), (8047, 251170), (16094, 125585), (25117, 80470), (40235, 50234)]