20678634

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{509}}^1$

素因数の和:615

約数の個数: 48

約数和(自身を含む): 46860840

約数和(自身を除く): 26182206

約数列:

[1, 2, 3, 6, 9, 18, 37, 61, 74, 111, 122, 183, 222, 333, 366, 509, 549, 666, 1018, 1098, 1527, 2257, 3054, 4514, 4581, 6771, 9162, 13542, 18833, 20313, 31049, 37666, 40626, 56499, 62098, 93147, 112998, 169497, 186294, 279441, 338994, 558882, 1148813, 2297626, 3446439, 6892878, 10339317, 20678634]

約数ペア:

[(1, 20678634), (2, 10339317), (3, 6892878), (6, 3446439), (9, 2297626), (18, 1148813), (37, 558882), (61, 338994), (74, 279441), (111, 186294), (122, 169497), (183, 112998), (222, 93147), (333, 62098), (366, 56499), (509, 40626), (549, 37666), (666, 31049), (1018, 20313), (1098, 18833), (1527, 13542), (2257, 9162), (3054, 6771), (4514, 4581)]