20782846

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:173

約数の個数: 64

約数和(自身を含む): 40550400

約数和(自身を除く): 19767554

約数列:

[1, 2, 7, 14, 19, 23, 38, 43, 46, 79, 86, 133, 158, 161, 266, 301, 322, 437, 553, 602, 817, 874, 989, 1106, 1501, 1634, 1817, 1978, 3002, 3059, 3397, 3634, 5719, 6118, 6794, 6923, 10507, 11438, 12719, 13846, 18791, 21014, 23779, 25438, 34523, 37582, 47558, 64543, 69046, 78131, 129086, 131537, 156262, 241661, 263074, 451801, 483322, 546917, 903602, 1093834, 1484489, 2968978, 10391423, 20782846]

約数ペア:

[(1, 20782846), (2, 10391423), (7, 2968978), (14, 1484489), (19, 1093834), (23, 903602), (38, 546917), (43, 483322), (46, 451801), (79, 263074), (86, 241661), (133, 156262), (158, 131537), (161, 129086), (266, 78131), (301, 69046), (322, 64543), (437, 47558), (553, 37582), (602, 34523), (817, 25438), (874, 23779), (989, 21014), (1106, 18791), (1501, 13846), (1634, 12719), (1817, 11438), (1978, 10507), (3002, 6923), (3059, 6794), (3397, 6118), (3634, 5719)]