21619444

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4129}}^1$

素因数の和:4168

約数の個数: 48

約数和(自身を含む): 49956480

約数和(自身を除く): 28337036

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 28, 34, 44, 68, 77, 119, 154, 187, 238, 308, 374, 476, 748, 1309, 2618, 4129, 5236, 8258, 16516, 28903, 45419, 57806, 70193, 90838, 115612, 140386, 181676, 280772, 317933, 491351, 635866, 772123, 982702, 1271732, 1544246, 1965404, 3088492, 5404861, 10809722, 21619444]

約数ペア:

[(1, 21619444), (2, 10809722), (4, 5404861), (7, 3088492), (11, 1965404), (14, 1544246), (17, 1271732), (22, 982702), (28, 772123), (34, 635866), (44, 491351), (68, 317933), (77, 280772), (119, 181676), (154, 140386), (187, 115612), (238, 90838), (308, 70193), (374, 57806), (476, 45419), (748, 28903), (1309, 16516), (2618, 8258), (4129, 5236)]