21865162

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{181}}^1$

素因数の和:247

約数の個数: 48

約数和(自身を含む): 40229280

約数和(自身を除く): 18364118

約数列:

[1, 2, 11, 17, 19, 22, 34, 38, 181, 187, 209, 289, 323, 362, 374, 418, 578, 646, 1991, 3077, 3179, 3439, 3553, 3982, 5491, 6154, 6358, 6878, 7106, 10982, 33847, 37829, 52309, 58463, 60401, 67694, 75658, 104618, 116926, 120802, 575399, 643093, 993871, 1150798, 1286186, 1987742, 10932581, 21865162]

約数ペア:

[(1, 21865162), (2, 10932581), (11, 1987742), (17, 1286186), (19, 1150798), (22, 993871), (34, 643093), (38, 575399), (181, 120802), (187, 116926), (209, 104618), (289, 75658), (323, 67694), (362, 60401), (374, 58463), (418, 52309), (578, 37829), (646, 33847), (1991, 10982), (3077, 7106), (3179, 6878), (3439, 6358), (3553, 6154), (3982, 5491)]