18258884

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{431}}^1$

素因数の和:548

約数の個数: 48

約数和(自身を含む): 39191040

約数和(自身を除く): 20932156

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 89, 119, 178, 238, 356, 431, 476, 623, 862, 1246, 1513, 1724, 2492, 3017, 3026, 6034, 6052, 7327, 10591, 12068, 14654, 21182, 29308, 38359, 42364, 51289, 76718, 102578, 153436, 205156, 268513, 537026, 652103, 1074052, 1304206, 2608412, 4564721, 9129442, 18258884]

約数ペア:

[(1, 18258884), (2, 9129442), (4, 4564721), (7, 2608412), (14, 1304206), (17, 1074052), (28, 652103), (34, 537026), (68, 268513), (89, 205156), (119, 153436), (178, 102578), (238, 76718), (356, 51289), (431, 42364), (476, 38359), (623, 29308), (862, 21182), (1246, 14654), (1513, 12068), (1724, 10591), (2492, 7327), (3017, 6052), (3026, 6034)]