20403774

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{509}}^1$

素因数の和:665

約数の個数: 48

約数和(自身を含む): 47258640

約数和(自身を除く): 26854866

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 131, 153, 262, 306, 393, 509, 786, 1018, 1179, 1527, 2227, 2358, 3054, 4454, 4581, 6681, 8653, 9162, 13362, 17306, 20043, 25959, 40086, 51918, 66679, 77877, 133358, 155754, 200037, 400074, 600111, 1133543, 1200222, 2267086, 3400629, 6801258, 10201887, 20403774]

約数ペア:

[(1, 20403774), (2, 10201887), (3, 6801258), (6, 3400629), (9, 2267086), (17, 1200222), (18, 1133543), (34, 600111), (51, 400074), (102, 200037), (131, 155754), (153, 133358), (262, 77877), (306, 66679), (393, 51918), (509, 40086), (786, 25959), (1018, 20043), (1179, 17306), (1527, 13362), (2227, 9162), (2358, 8653), (3054, 6681), (4454, 4581)]