21722415

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:105

約数の個数: 96

約数和(自身を含む): 44271360

約数和(自身を除く): 22548945

約数列:

[1, 3, 5, 11, 13, 15, 19, 33, 39, 41, 55, 57, 65, 95, 123, 143, 165, 169, 195, 205, 209, 247, 285, 429, 451, 507, 533, 615, 627, 715, 741, 779, 845, 1045, 1235, 1353, 1599, 1859, 2145, 2255, 2337, 2535, 2665, 2717, 3135, 3211, 3705, 3895, 5577, 5863, 6765, 6929, 7995, 8151, 8569, 9295, 9633, 10127, 11685, 13585, 16055, 17589, 20787, 25707, 27885, 29315, 30381, 34645, 35321, 40755, 42845, 48165, 50635, 76219, 87945, 103935, 105963, 111397, 128535, 131651, 151905, 176605, 228657, 334191, 381095, 394953, 529815, 556985, 658255, 1143285, 1448161, 1670955, 1974765, 4344483, 7240805, 21722415]

約数ペア:

[(1, 21722415), (3, 7240805), (5, 4344483), (11, 1974765), (13, 1670955), (15, 1448161), (19, 1143285), (33, 658255), (39, 556985), (41, 529815), (55, 394953), (57, 381095), (65, 334191), (95, 228657), (123, 176605), (143, 151905), (165, 131651), (169, 128535), (195, 111397), (205, 105963), (209, 103935), (247, 87945), (285, 76219), (429, 50635), (451, 48165), (507, 42845), (533, 40755), (615, 35321), (627, 34645), (715, 30381), (741, 29315), (779, 27885), (845, 25707), (1045, 20787), (1235, 17589), (1353, 16055), (1599, 13585), (1859, 11685), (2145, 10127), (2255, 9633), (2337, 9295), (2535, 8569), (2665, 8151), (2717, 7995), (3135, 6929), (3211, 6765), (3705, 5863), (3895, 5577)]