19688238

素因数分解:

$2^1\times 3^3\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:254

約数の個数: 64

約数和(自身を含む): 45830400

約数和(自身を除く): 26142162

約数列:

[1, 2, 3, 6, 9, 18, 27, 43, 54, 61, 86, 122, 129, 139, 183, 258, 278, 366, 387, 417, 549, 774, 834, 1098, 1161, 1251, 1647, 2322, 2502, 2623, 3294, 3753, 5246, 5977, 7506, 7869, 8479, 11954, 15738, 16958, 17931, 23607, 25437, 35862, 47214, 50874, 53793, 70821, 76311, 107586, 141642, 152622, 161379, 228933, 322758, 364597, 457866, 729194, 1093791, 2187582, 3281373, 6562746, 9844119, 19688238]

約数ペア:

[(1, 19688238), (2, 9844119), (3, 6562746), (6, 3281373), (9, 2187582), (18, 1093791), (27, 729194), (43, 457866), (54, 364597), (61, 322758), (86, 228933), (122, 161379), (129, 152622), (139, 141642), (183, 107586), (258, 76311), (278, 70821), (366, 53793), (387, 50874), (417, 47214), (549, 35862), (774, 25437), (834, 23607), (1098, 17931), (1161, 16958), (1251, 15738), (1647, 11954), (2322, 8479), (2502, 7869), (2623, 7506), (3294, 5977), (3753, 5246)]