21570003

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8779}}^1$

素因数の和:8808

約数の個数: 32

約数和(自身を含む): 39334400

約数和(自身を除く): 17764397

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 8779, 26337, 61453, 79011, 114127, 184359, 237033, 342381, 553077, 798889, 1027143, 1659231, 2396667, 3081429, 7190001, 21570003]

約数ペア:

[(1, 21570003), (3, 7190001), (7, 3081429), (9, 2396667), (13, 1659231), (21, 1027143), (27, 798889), (39, 553077), (63, 342381), (91, 237033), (117, 184359), (189, 114127), (273, 79011), (351, 61453), (819, 26337), (2457, 8779)]