20569428

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{409}}^1$

素因数の和:557

約数の個数: 72

約数和(自身を含む): 57308160

約数和(自身を除く): 36738732

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 127, 132, 198, 254, 381, 396, 409, 508, 762, 818, 1143, 1227, 1397, 1524, 1636, 2286, 2454, 2794, 3681, 4191, 4499, 4572, 4908, 5588, 7362, 8382, 8998, 12573, 13497, 14724, 16764, 17996, 25146, 26994, 40491, 50292, 51943, 53988, 80982, 103886, 155829, 161964, 207772, 311658, 467487, 571373, 623316, 934974, 1142746, 1714119, 1869948, 2285492, 3428238, 5142357, 6856476, 10284714, 20569428]

約数ペア:

[(1, 20569428), (2, 10284714), (3, 6856476), (4, 5142357), (6, 3428238), (9, 2285492), (11, 1869948), (12, 1714119), (18, 1142746), (22, 934974), (33, 623316), (36, 571373), (44, 467487), (66, 311658), (99, 207772), (127, 161964), (132, 155829), (198, 103886), (254, 80982), (381, 53988), (396, 51943), (409, 50292), (508, 40491), (762, 26994), (818, 25146), (1143, 17996), (1227, 16764), (1397, 14724), (1524, 13497), (1636, 12573), (2286, 8998), (2454, 8382), (2794, 7362), (3681, 5588), (4191, 4908), (4499, 4572)]