21945222

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{727}}^1$

素因数の和:794

約数の個数: 64

約数和(自身を含む): 53813760

約数和(自身を除く): 31868538

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 43, 54, 78, 86, 117, 129, 234, 258, 351, 387, 559, 702, 727, 774, 1118, 1161, 1454, 1677, 2181, 2322, 3354, 4362, 5031, 6543, 9451, 10062, 13086, 15093, 18902, 19629, 28353, 30186, 31261, 39258, 56706, 62522, 85059, 93783, 170118, 187566, 255177, 281349, 406393, 510354, 562698, 812786, 844047, 1219179, 1688094, 2438358, 3657537, 7315074, 10972611, 21945222]

約数ペア:

[(1, 21945222), (2, 10972611), (3, 7315074), (6, 3657537), (9, 2438358), (13, 1688094), (18, 1219179), (26, 844047), (27, 812786), (39, 562698), (43, 510354), (54, 406393), (78, 281349), (86, 255177), (117, 187566), (129, 170118), (234, 93783), (258, 85059), (351, 62522), (387, 56706), (559, 39258), (702, 31261), (727, 30186), (774, 28353), (1118, 19629), (1161, 18902), (1454, 15093), (1677, 13086), (2181, 10062), (2322, 9451), (3354, 6543), (4362, 5031)]