213999513

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{991}}^1$

素因数の和:1134

約数の個数: 48

約数和(自身を含む): 360976896

約数和(自身を除く): 146977383

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 113, 147, 273, 339, 637, 791, 991, 1469, 1911, 2373, 2973, 4407, 5537, 6937, 10283, 12883, 16611, 20811, 30849, 38649, 48559, 71981, 90181, 111983, 145677, 215943, 270543, 335949, 631267, 783881, 1455779, 1893801, 2351643, 4367337, 5487167, 10190453, 16461501, 30571359, 71333171, 213999513]

約数ペア:

[(1, 213999513), (3, 71333171), (7, 30571359), (13, 16461501), (21, 10190453), (39, 5487167), (49, 4367337), (91, 2351643), (113, 1893801), (147, 1455779), (273, 783881), (339, 631267), (637, 335949), (791, 270543), (991, 215943), (1469, 145677), (1911, 111983), (2373, 90181), (2973, 71981), (4407, 48559), (5537, 38649), (6937, 30849), (10283, 20811), (12883, 16611)]