21185928

素因数分解:

$2^3\times 3^3\times {\mathrm{43}}^1\times {\mathrm{2281}}^1$

素因数の和:2339

約数の個数: 64

約数和(自身を含む): 60244800

約数和(自身を除く): 39058872

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 43, 54, 72, 86, 108, 129, 172, 216, 258, 344, 387, 516, 774, 1032, 1161, 1548, 2281, 2322, 3096, 4562, 4644, 6843, 9124, 9288, 13686, 18248, 20529, 27372, 41058, 54744, 61587, 82116, 98083, 123174, 164232, 196166, 246348, 294249, 392332, 492696, 588498, 784664, 882747, 1176996, 1765494, 2353992, 2648241, 3530988, 5296482, 7061976, 10592964, 21185928]

約数ペア:

[(1, 21185928), (2, 10592964), (3, 7061976), (4, 5296482), (6, 3530988), (8, 2648241), (9, 2353992), (12, 1765494), (18, 1176996), (24, 882747), (27, 784664), (36, 588498), (43, 492696), (54, 392332), (72, 294249), (86, 246348), (108, 196166), (129, 164232), (172, 123174), (216, 98083), (258, 82116), (344, 61587), (387, 54744), (516, 41058), (774, 27372), (1032, 20529), (1161, 18248), (1548, 13686), (2281, 9288), (2322, 9124), (3096, 6843), (4562, 4644)]