21866240

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1553}}^1$

素因数の和:1585

約数の個数: 72

約数和(自身を含む): 57174768

約数和(自身を除く): 35308528

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1408, 1553, 1760, 2816, 3106, 3520, 6212, 7040, 7765, 12424, 14080, 15530, 17083, 24848, 31060, 34166, 49696, 62120, 68332, 85415, 99392, 124240, 136664, 170830, 198784, 248480, 273328, 341660, 397568, 496960, 546656, 683320, 993920, 1093312, 1366640, 1987840, 2186624, 2733280, 4373248, 5466560, 10933120, 21866240]

約数ペア:

[(1, 21866240), (2, 10933120), (4, 5466560), (5, 4373248), (8, 2733280), (10, 2186624), (11, 1987840), (16, 1366640), (20, 1093312), (22, 993920), (32, 683320), (40, 546656), (44, 496960), (55, 397568), (64, 341660), (80, 273328), (88, 248480), (110, 198784), (128, 170830), (160, 136664), (176, 124240), (220, 99392), (256, 85415), (320, 68332), (352, 62120), (440, 49696), (640, 34166), (704, 31060), (880, 24848), (1280, 17083), (1408, 15530), (1553, 14080), (1760, 12424), (2816, 7765), (3106, 7040), (3520, 6212)]