20267793

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:215

約数の個数: 64

約数和(自身を含む): 37793280

約数和(自身を除く): 17525487

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 73, 91, 113, 117, 189, 219, 273, 339, 351, 511, 657, 791, 819, 949, 1017, 1469, 1533, 1971, 2373, 2457, 2847, 3051, 4407, 4599, 6643, 7119, 8249, 8541, 10283, 13221, 13797, 19929, 21357, 24747, 25623, 30849, 39663, 57743, 59787, 74241, 92547, 107237, 173229, 179361, 222723, 277641, 321711, 519687, 750659, 965133, 1559061, 2251977, 2895399, 6755931, 20267793]

約数ペア:

[(1, 20267793), (3, 6755931), (7, 2895399), (9, 2251977), (13, 1559061), (21, 965133), (27, 750659), (39, 519687), (63, 321711), (73, 277641), (91, 222723), (113, 179361), (117, 173229), (189, 107237), (219, 92547), (273, 74241), (339, 59787), (351, 57743), (511, 39663), (657, 30849), (791, 25623), (819, 24747), (949, 21357), (1017, 19929), (1469, 13797), (1533, 13221), (1971, 10283), (2373, 8541), (2457, 8249), (2847, 7119), (3051, 6643), (4407, 4599)]