21134048

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{503}}^1$

素因数の和:627

約数の個数: 48

約数和(自身を含む): 45341856

約数和(自身を除く): 24207808

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 101, 104, 202, 208, 404, 416, 503, 808, 1006, 1313, 1616, 2012, 2626, 3232, 4024, 5252, 6539, 8048, 10504, 13078, 16096, 21008, 26156, 42016, 50803, 52312, 101606, 104624, 203212, 209248, 406424, 660439, 812848, 1320878, 1625696, 2641756, 5283512, 10567024, 21134048]

約数ペア:

[(1, 21134048), (2, 10567024), (4, 5283512), (8, 2641756), (13, 1625696), (16, 1320878), (26, 812848), (32, 660439), (52, 406424), (101, 209248), (104, 203212), (202, 104624), (208, 101606), (404, 52312), (416, 50803), (503, 42016), (808, 26156), (1006, 21008), (1313, 16096), (1616, 13078), (2012, 10504), (2626, 8048), (3232, 6539), (4024, 5252)]