21241854

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{269}}^1$

素因数の和:425

約数の個数: 48

約数和(自身を含む): 47764080

約数和(自身を除く): 26522226

約数列:

[1, 2, 3, 6, 9, 18, 41, 82, 107, 123, 214, 246, 269, 321, 369, 538, 642, 738, 807, 963, 1614, 1926, 2421, 4387, 4842, 8774, 11029, 13161, 22058, 26322, 28783, 33087, 39483, 57566, 66174, 78966, 86349, 99261, 172698, 198522, 259047, 518094, 1180103, 2360206, 3540309, 7080618, 10620927, 21241854]

約数ペア:

[(1, 21241854), (2, 10620927), (3, 7080618), (6, 3540309), (9, 2360206), (18, 1180103), (41, 518094), (82, 259047), (107, 198522), (123, 172698), (214, 99261), (246, 86349), (269, 78966), (321, 66174), (369, 57566), (538, 39483), (642, 33087), (738, 28783), (807, 26322), (963, 22058), (1614, 13161), (1926, 11029), (2421, 8774), (4387, 4842)]