20996957508

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{271}}^1\times {\mathrm{347}}^1\times {\mathrm{809}}^1$

素因数の和:1457

約数の個数: 96

約数和(自身を含む): 51523153920

約数和(自身を除く): 30526196412

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 271, 276, 347, 542, 694, 809, 813, 1041, 1084, 1388, 1618, 1626, 2082, 2427, 3236, 3252, 4164, 4854, 6233, 7981, 9708, 12466, 15962, 18607, 18699, 23943, 24932, 31924, 37214, 37398, 47886, 55821, 74428, 74796, 94037, 95772, 111642, 188074, 219239, 223284, 280723, 282111, 376148, 438478, 561446, 564222, 657717, 842169, 876956, 1122892, 1128444, 1315434, 1684338, 2162851, 2630868, 3368676, 4325702, 5042497, 6456629, 6488553, 8651404, 10084994, 12913258, 12977106, 15127491, 19369887, 20169988, 25826516, 25954212, 30254982, 38739774, 60509964, 76075933, 77479548, 152151866, 228227799, 304303732, 456455598, 912911196, 1749746459, 3499492918, 5249239377, 6998985836, 10498478754, 20996957508]

約数ペア:

[(1, 20996957508), (2, 10498478754), (3, 6998985836), (4, 5249239377), (6, 3499492918), (12, 1749746459), (23, 912911196), (46, 456455598), (69, 304303732), (92, 228227799), (138, 152151866), (271, 77479548), (276, 76075933), (347, 60509964), (542, 38739774), (694, 30254982), (809, 25954212), (813, 25826516), (1041, 20169988), (1084, 19369887), (1388, 15127491), (1618, 12977106), (1626, 12913258), (2082, 10084994), (2427, 8651404), (3236, 6488553), (3252, 6456629), (4164, 5042497), (4854, 4325702), (6233, 3368676), (7981, 2630868), (9708, 2162851), (12466, 1684338), (15962, 1315434), (18607, 1128444), (18699, 1122892), (23943, 876956), (24932, 842169), (31924, 657717), (37214, 564222), (37398, 561446), (47886, 438478), (55821, 376148), (74428, 282111), (74796, 280723), (94037, 223284), (95772, 219239), (111642, 188074)]