21976444

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{337}}^1$

素因数の和:502

約数の個数: 48

約数和(自身を含む): 47017152

約数和(自身を除く): 25040708

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 137, 238, 274, 337, 476, 548, 674, 959, 1348, 1918, 2329, 2359, 3836, 4658, 4718, 5729, 9316, 9436, 11458, 16303, 22916, 32606, 40103, 46169, 65212, 80206, 92338, 160412, 184676, 323183, 646366, 784873, 1292732, 1569746, 3139492, 5494111, 10988222, 21976444]

約数ペア:

[(1, 21976444), (2, 10988222), (4, 5494111), (7, 3139492), (14, 1569746), (17, 1292732), (28, 784873), (34, 646366), (68, 323183), (119, 184676), (137, 160412), (238, 92338), (274, 80206), (337, 65212), (476, 46169), (548, 40103), (674, 32606), (959, 22916), (1348, 16303), (1918, 11458), (2329, 9436), (2359, 9316), (3836, 5729), (4658, 4718)]