21293784

素因数分解:

$2^3\times 3^2\times {\mathrm{89}}^1\times {\mathrm{3323}}^1$

素因数の和:3424

約数の個数: 48

約数和(自身を含む): 58336200

約数和(自身を除く): 37042416

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 89, 178, 267, 356, 534, 712, 801, 1068, 1602, 2136, 3204, 3323, 6408, 6646, 9969, 13292, 19938, 26584, 29907, 39876, 59814, 79752, 119628, 239256, 295747, 591494, 887241, 1182988, 1774482, 2365976, 2661723, 3548964, 5323446, 7097928, 10646892, 21293784]

約数ペア:

[(1, 21293784), (2, 10646892), (3, 7097928), (4, 5323446), (6, 3548964), (8, 2661723), (9, 2365976), (12, 1774482), (18, 1182988), (24, 887241), (36, 591494), (72, 295747), (89, 239256), (178, 119628), (267, 79752), (356, 59814), (534, 39876), (712, 29907), (801, 26584), (1068, 19938), (1602, 13292), (2136, 9969), (3204, 6646), (3323, 6408)]