20335172

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{487}}^1$

素因数の和:588

約数の個数: 48

約数和(自身を含む): 42467712

約数和(自身を除く): 22132540

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 73, 143, 146, 286, 292, 487, 572, 803, 949, 974, 1606, 1898, 1948, 3212, 3796, 5357, 6331, 10439, 10714, 12662, 20878, 21428, 25324, 35551, 41756, 69641, 71102, 139282, 142204, 278564, 391061, 462163, 782122, 924326, 1564244, 1848652, 5083793, 10167586, 20335172]

約数ペア:

[(1, 20335172), (2, 10167586), (4, 5083793), (11, 1848652), (13, 1564244), (22, 924326), (26, 782122), (44, 462163), (52, 391061), (73, 278564), (143, 142204), (146, 139282), (286, 71102), (292, 69641), (487, 41756), (572, 35551), (803, 25324), (949, 21428), (974, 20878), (1606, 12662), (1898, 10714), (1948, 10439), (3212, 6331), (3796, 5357)]