19929438

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{523}}^1$

素因数の和:633

約数の個数: 48

約数和(自身を含む): 45367920

約数和(自身を除く): 25438482

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 73, 87, 146, 174, 219, 261, 438, 522, 523, 657, 1046, 1314, 1569, 2117, 3138, 4234, 4707, 6351, 9414, 12702, 15167, 19053, 30334, 38106, 38179, 45501, 76358, 91002, 114537, 136503, 229074, 273006, 343611, 687222, 1107191, 2214382, 3321573, 6643146, 9964719, 19929438]

約数ペア:

[(1, 19929438), (2, 9964719), (3, 6643146), (6, 3321573), (9, 2214382), (18, 1107191), (29, 687222), (58, 343611), (73, 273006), (87, 229074), (146, 136503), (174, 114537), (219, 91002), (261, 76358), (438, 45501), (522, 38179), (523, 38106), (657, 30334), (1046, 19053), (1314, 15167), (1569, 12702), (2117, 9414), (3138, 6351), (4234, 4707)]