18885825

素因数分解:

$3^3\times 5^2\times 7^2\times {\mathrm{571}}^1$

素因数の和:604

約数の個数: 72

約数和(自身を含む): 40428960

約数和(自身を除く): 21543135

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 49, 63, 75, 105, 135, 147, 175, 189, 225, 245, 315, 441, 525, 571, 675, 735, 945, 1225, 1323, 1575, 1713, 2205, 2855, 3675, 3997, 4725, 5139, 6615, 8565, 11025, 11991, 14275, 15417, 19985, 25695, 27979, 33075, 35973, 42825, 59955, 77085, 83937, 99925, 107919, 128475, 139895, 179865, 251811, 299775, 385425, 419685, 539595, 699475, 755433, 899325, 1259055, 2098425, 2697975, 3777165, 6295275, 18885825]

約数ペア:

[(1, 18885825), (3, 6295275), (5, 3777165), (7, 2697975), (9, 2098425), (15, 1259055), (21, 899325), (25, 755433), (27, 699475), (35, 539595), (45, 419685), (49, 385425), (63, 299775), (75, 251811), (105, 179865), (135, 139895), (147, 128475), (175, 107919), (189, 99925), (225, 83937), (245, 77085), (315, 59955), (441, 42825), (525, 35973), (571, 33075), (675, 27979), (735, 25695), (945, 19985), (1225, 15417), (1323, 14275), (1575, 11991), (1713, 11025), (2205, 8565), (2855, 6615), (3675, 5139), (3997, 4725)]