12121356

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:215

約数の個数: 72

約数和(自身を含む): 31563840

約数和(自身を除く): 19442484

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 43, 52, 78, 86, 129, 139, 156, 169, 172, 258, 278, 338, 417, 507, 516, 556, 559, 676, 834, 1014, 1118, 1668, 1677, 1807, 2028, 2236, 3354, 3614, 5421, 5977, 6708, 7228, 7267, 10842, 11954, 14534, 17931, 21684, 21801, 23491, 23908, 29068, 35862, 43602, 46982, 70473, 71724, 77701, 87204, 93964, 140946, 155402, 233103, 281892, 310804, 466206, 932412, 1010113, 2020226, 3030339, 4040452, 6060678, 12121356]

約数ペア:

[(1, 12121356), (2, 6060678), (3, 4040452), (4, 3030339), (6, 2020226), (12, 1010113), (13, 932412), (26, 466206), (39, 310804), (43, 281892), (52, 233103), (78, 155402), (86, 140946), (129, 93964), (139, 87204), (156, 77701), (169, 71724), (172, 70473), (258, 46982), (278, 43602), (338, 35862), (417, 29068), (507, 23908), (516, 23491), (556, 21801), (559, 21684), (676, 17931), (834, 14534), (1014, 11954), (1118, 10842), (1668, 7267), (1677, 7228), (1807, 6708), (2028, 5977), (2236, 5421), (3354, 3614)]