21408643186

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2175233}}^1$

素因数の和:2175298

約数の個数: 32

約数和(自身を含む): 39676268160

約数和(自身を除く): 18267624974

約数列:

[1, 2, 7, 14, 19, 37, 38, 74, 133, 259, 266, 518, 703, 1406, 4921, 9842, 2175233, 4350466, 15226631, 30453262, 41329427, 80483621, 82658854, 160967242, 289305989, 563385347, 578611978, 1126770694, 1529188799, 3058377598, 10704321593, 21408643186]

約数ペア:

[(1, 21408643186), (2, 10704321593), (7, 3058377598), (14, 1529188799), (19, 1126770694), (37, 578611978), (38, 563385347), (74, 289305989), (133, 160967242), (259, 82658854), (266, 80483621), (518, 41329427), (703, 30453262), (1406, 15226631), (4921, 4350466), (9842, 2175233)]