21698560

素因数分解:

$2^{11}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1$

素因数の和:203

約数の個数: 96

約数和(自身を含む): 56412720

約数和(自身を除く): 34714160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 163, 208, 256, 260, 320, 326, 416, 512, 520, 640, 652, 815, 832, 1024, 1040, 1280, 1304, 1630, 1664, 2048, 2080, 2119, 2560, 2608, 3260, 3328, 4160, 4238, 5120, 5216, 6520, 6656, 8320, 8476, 10240, 10432, 10595, 13040, 13312, 16640, 16952, 20864, 21190, 26080, 26624, 33280, 33904, 41728, 42380, 52160, 66560, 67808, 83456, 84760, 104320, 133120, 135616, 166912, 169520, 208640, 271232, 333824, 339040, 417280, 542464, 678080, 834560, 1084928, 1356160, 1669120, 2169856, 2712320, 4339712, 5424640, 10849280, 21698560]

約数ペア:

[(1, 21698560), (2, 10849280), (4, 5424640), (5, 4339712), (8, 2712320), (10, 2169856), (13, 1669120), (16, 1356160), (20, 1084928), (26, 834560), (32, 678080), (40, 542464), (52, 417280), (64, 339040), (65, 333824), (80, 271232), (104, 208640), (128, 169520), (130, 166912), (160, 135616), (163, 133120), (208, 104320), (256, 84760), (260, 83456), (320, 67808), (326, 66560), (416, 52160), (512, 42380), (520, 41728), (640, 33904), (652, 33280), (815, 26624), (832, 26080), (1024, 21190), (1040, 20864), (1280, 16952), (1304, 16640), (1630, 13312), (1664, 13040), (2048, 10595), (2080, 10432), (2119, 10240), (2560, 8476), (2608, 8320), (3260, 6656), (3328, 6520), (4160, 5216), (4238, 5120)]