21855690

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1327}}^1$

素因数の和:1404

約数の個数: 64

約数和(自身を含む): 59281920

約数和(自身を除く): 37426230

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 61, 90, 122, 135, 183, 270, 305, 366, 549, 610, 915, 1098, 1327, 1647, 1830, 2654, 2745, 3294, 3981, 5490, 6635, 7962, 8235, 11943, 13270, 16470, 19905, 23886, 35829, 39810, 59715, 71658, 80947, 119430, 161894, 179145, 242841, 358290, 404735, 485682, 728523, 809470, 1214205, 1457046, 2185569, 2428410, 3642615, 4371138, 7285230, 10927845, 21855690]

約数ペア:

[(1, 21855690), (2, 10927845), (3, 7285230), (5, 4371138), (6, 3642615), (9, 2428410), (10, 2185569), (15, 1457046), (18, 1214205), (27, 809470), (30, 728523), (45, 485682), (54, 404735), (61, 358290), (90, 242841), (122, 179145), (135, 161894), (183, 119430), (270, 80947), (305, 71658), (366, 59715), (549, 39810), (610, 35829), (915, 23886), (1098, 19905), (1327, 16470), (1647, 13270), (1830, 11943), (2654, 8235), (2745, 7962), (3294, 6635), (3981, 5490)]