21000913270

素因数分解:

$2^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{239}}^1\times {\mathrm{77761}}^1$

素因数の和:78120

約数の個数: 32

約数和(自身を含む): 38296229760

約数和(自身を除く): 17295316490

約数列:

[1, 2, 5, 10, 113, 226, 239, 478, 565, 1130, 1195, 2390, 27007, 54014, 77761, 135035, 155522, 270070, 388805, 777610, 8786993, 17573986, 18584879, 37169758, 43934965, 87869930, 92924395, 185848790, 2100091327, 4200182654, 10500456635, 21000913270]

約数ペア:

[(1, 21000913270), (2, 10500456635), (5, 4200182654), (10, 2100091327), (113, 185848790), (226, 92924395), (239, 87869930), (478, 43934965), (565, 37169758), (1130, 18584879), (1195, 17573986), (2390, 8786993), (27007, 777610), (54014, 388805), (77761, 270070), (135035, 155522)]