21924135

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{233}}^1$

素因数の和:305

約数の個数: 64

約数和(自身を含む): 42456960

約数和(自身を除く): 20532825

約数列:

[1, 3, 5, 9, 15, 17, 27, 41, 45, 51, 85, 123, 135, 153, 205, 233, 255, 369, 459, 615, 697, 699, 765, 1107, 1165, 1845, 2091, 2097, 2295, 3485, 3495, 3961, 5535, 6273, 6291, 9553, 10455, 10485, 11883, 18819, 19805, 28659, 31365, 31455, 35649, 47765, 59415, 85977, 94095, 106947, 143295, 162401, 178245, 257931, 429885, 487203, 534735, 812005, 1289655, 1461609, 2436015, 4384827, 7308045, 21924135]

約数ペア:

[(1, 21924135), (3, 7308045), (5, 4384827), (9, 2436015), (15, 1461609), (17, 1289655), (27, 812005), (41, 534735), (45, 487203), (51, 429885), (85, 257931), (123, 178245), (135, 162401), (153, 143295), (205, 106947), (233, 94095), (255, 85977), (369, 59415), (459, 47765), (615, 35649), (697, 31455), (699, 31365), (765, 28659), (1107, 19805), (1165, 18819), (1845, 11883), (2091, 10485), (2097, 10455), (2295, 9553), (3485, 6291), (3495, 6273), (3961, 5535)]