21464528

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{70607}}^1$

素因数の和:70634

約数の個数: 20

約数和(自身を含む): 43776960

約数和(自身を除く): 22312432

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 70607, 141214, 282428, 564856, 1129712, 1341533, 2683066, 5366132, 10732264, 21464528]

約数ペア:

[(1, 21464528), (2, 10732264), (4, 5366132), (8, 2683066), (16, 1341533), (19, 1129712), (38, 564856), (76, 282428), (152, 141214), (304, 70607)]