21906880

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{4027}}^1$

素因数の和:4061

約数の個数: 56

約数和(自身を含む): 55248048

約数和(自身を除く): 33341168

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 320, 340, 544, 680, 1088, 1360, 2720, 4027, 5440, 8054, 16108, 20135, 32216, 40270, 64432, 68459, 80540, 128864, 136918, 161080, 257728, 273836, 322160, 342295, 547672, 644320, 684590, 1095344, 1288640, 1369180, 2190688, 2738360, 4381376, 5476720, 10953440, 21906880]

約数ペア:

[(1, 21906880), (2, 10953440), (4, 5476720), (5, 4381376), (8, 2738360), (10, 2190688), (16, 1369180), (17, 1288640), (20, 1095344), (32, 684590), (34, 644320), (40, 547672), (64, 342295), (68, 322160), (80, 273836), (85, 257728), (136, 161080), (160, 136918), (170, 128864), (272, 80540), (320, 68459), (340, 64432), (544, 40270), (680, 32216), (1088, 20135), (1360, 16108), (2720, 8054), (4027, 5440)]