21890836

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{1459}}^1$

素因数の和:1516

約数の個数: 36

約数和(自身を含む): 43496320

約数和(自身を除く): 21605484

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 121, 124, 242, 341, 484, 682, 1364, 1459, 2918, 3751, 5836, 7502, 15004, 16049, 32098, 45229, 64196, 90458, 176539, 180916, 353078, 497519, 706156, 995038, 1990076, 5472709, 10945418, 21890836]

約数ペア:

[(1, 21890836), (2, 10945418), (4, 5472709), (11, 1990076), (22, 995038), (31, 706156), (44, 497519), (62, 353078), (121, 180916), (124, 176539), (242, 90458), (341, 64196), (484, 45229), (682, 32098), (1364, 16049), (1459, 15004), (2918, 7502), (3751, 5836)]