21172294

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{409}}^1$

素因数の和:616

約数の個数: 32

約数和(自身を含む): 37608480

約数和(自身を除く): 16436186

約数列:

[1, 2, 11, 13, 22, 26, 143, 181, 286, 362, 409, 818, 1991, 2353, 3982, 4499, 4706, 5317, 8998, 10634, 25883, 51766, 58487, 74029, 116974, 148058, 814319, 962377, 1628638, 1924754, 10586147, 21172294]

約数ペア:

[(1, 21172294), (2, 10586147), (11, 1924754), (13, 1628638), (22, 962377), (26, 814319), (143, 148058), (181, 116974), (286, 74029), (362, 58487), (409, 51766), (818, 25883), (1991, 10634), (2353, 8998), (3982, 5317), (4499, 4706)]