21915244

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1907}}^1$

素因数の和:1954

約数の個数: 36

約数和(自身を含む): 43994664

約数和(自身を除く): 22079420

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 169, 221, 338, 442, 676, 884, 1907, 2873, 3814, 5746, 7628, 11492, 24791, 32419, 49582, 64838, 99164, 129676, 322283, 421447, 644566, 842894, 1289132, 1685788, 5478811, 10957622, 21915244]

約数ペア:

[(1, 21915244), (2, 10957622), (4, 5478811), (13, 1685788), (17, 1289132), (26, 842894), (34, 644566), (52, 421447), (68, 322283), (169, 129676), (221, 99164), (338, 64838), (442, 49582), (676, 32419), (884, 24791), (1907, 11492), (2873, 7628), (3814, 5746)]