21000383988

素因数分解:

$2^2\times 3^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{622123}}^1$

素因数の和:622256

約数の個数: 48

約数和(自身を含む): 51213247680

約数和(自身を除く): 30212863692

約数列:

[1, 2, 3, 4, 6, 12, 29, 58, 87, 97, 116, 174, 194, 291, 348, 388, 582, 1164, 2813, 5626, 8439, 11252, 16878, 33756, 622123, 1244246, 1866369, 2488492, 3732738, 7465476, 18041567, 36083134, 54124701, 60345931, 72166268, 108249402, 120691862, 181037793, 216498804, 241383724, 362075586, 724151172, 1750031999, 3500063998, 5250095997, 7000127996, 10500191994, 21000383988]

約数ペア:

[(1, 21000383988), (2, 10500191994), (3, 7000127996), (4, 5250095997), (6, 3500063998), (12, 1750031999), (29, 724151172), (58, 362075586), (87, 241383724), (97, 216498804), (116, 181037793), (174, 120691862), (194, 108249402), (291, 72166268), (348, 60345931), (388, 54124701), (582, 36083134), (1164, 18041567), (2813, 7465476), (5626, 3732738), (8439, 2488492), (11252, 1866369), (16878, 1244246), (33756, 622123)]