20865186

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{499}}^1$

素因数の和:631

約数の個数: 48

約数和(自身を含む): 47736000

約数和(自身を除く): 26870814

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 101, 138, 202, 207, 303, 414, 499, 606, 909, 998, 1497, 1818, 2323, 2994, 4491, 4646, 6969, 8982, 11477, 13938, 20907, 22954, 34431, 41814, 50399, 68862, 100798, 103293, 151197, 206586, 302394, 453591, 907182, 1159177, 2318354, 3477531, 6955062, 10432593, 20865186]

約数ペア:

[(1, 20865186), (2, 10432593), (3, 6955062), (6, 3477531), (9, 2318354), (18, 1159177), (23, 907182), (46, 453591), (69, 302394), (101, 206586), (138, 151197), (202, 103293), (207, 100798), (303, 68862), (414, 50399), (499, 41814), (606, 34431), (909, 22954), (998, 20907), (1497, 13938), (1818, 11477), (2323, 8982), (2994, 6969), (4491, 4646)]