18641658

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{163}}^1\times {\mathrm{389}}^1$

素因数の和:571

約数の個数: 48

約数和(自身を含む): 43748640

約数和(自身を除く): 25106982

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 163, 294, 326, 389, 489, 778, 978, 1141, 1167, 2282, 2334, 2723, 3423, 5446, 6846, 7987, 8169, 15974, 16338, 19061, 23961, 38122, 47922, 57183, 63407, 114366, 126814, 190221, 380442, 443849, 887698, 1331547, 2663094, 3106943, 6213886, 9320829, 18641658]

約数ペア:

[(1, 18641658), (2, 9320829), (3, 6213886), (6, 3106943), (7, 2663094), (14, 1331547), (21, 887698), (42, 443849), (49, 380442), (98, 190221), (147, 126814), (163, 114366), (294, 63407), (326, 57183), (389, 47922), (489, 38122), (778, 23961), (978, 19061), (1141, 16338), (1167, 15974), (2282, 8169), (2334, 7987), (2723, 6846), (3423, 5446)]