20120939979

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{12757}}^1$

素因数の和:12912

約数の個数: 64

約数和(自身を含む): 33313689600

約数和(自身を除く): 13192749621

約数列:

[1, 3, 7, 19, 21, 57, 59, 67, 133, 177, 201, 399, 413, 469, 1121, 1239, 1273, 1407, 3363, 3819, 3953, 7847, 8911, 11859, 12757, 23541, 26733, 27671, 38271, 75107, 83013, 89299, 225321, 242383, 267897, 525749, 727149, 752663, 854719, 1577247, 1696681, 2257989, 2564157, 5090043, 5268641, 5983033, 14300597, 15805923, 16239661, 17949099, 42901791, 48718983, 50428421, 100104179, 113677627, 151285263, 300312537, 341032881, 352998947, 958139999, 1058996841, 2874419997, 6706979993, 20120939979]

約数ペア:

[(1, 20120939979), (3, 6706979993), (7, 2874419997), (19, 1058996841), (21, 958139999), (57, 352998947), (59, 341032881), (67, 300312537), (133, 151285263), (177, 113677627), (201, 100104179), (399, 50428421), (413, 48718983), (469, 42901791), (1121, 17949099), (1239, 16239661), (1273, 15805923), (1407, 14300597), (3363, 5983033), (3819, 5268641), (3953, 5090043), (7847, 2564157), (8911, 2257989), (11859, 1696681), (12757, 1577247), (23541, 854719), (26733, 752663), (27671, 727149), (38271, 525749), (75107, 267897), (83013, 242383), (89299, 225321)]