398156913

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{2749}}^1$

素因数の和:2803

約数の個数: 72

約数和(自身を含む): 760760000

約数和(自身を除く): 362603087

約数列:

[1, 3, 7, 9, 11, 19, 21, 33, 57, 63, 77, 99, 121, 133, 171, 209, 231, 363, 399, 627, 693, 847, 1089, 1197, 1463, 1881, 2299, 2541, 2749, 4389, 6897, 7623, 8247, 13167, 16093, 19243, 20691, 24741, 30239, 48279, 52231, 57729, 90717, 144837, 156693, 173187, 211673, 272151, 332629, 365617, 470079, 574541, 635019, 997887, 1096851, 1723623, 1905057, 2328403, 2993661, 3290553, 4021787, 5170869, 6319951, 6985209, 12065361, 18959853, 20955627, 36196083, 44239657, 56879559, 132718971, 398156913]

約数ペア:

[(1, 398156913), (3, 132718971), (7, 56879559), (9, 44239657), (11, 36196083), (19, 20955627), (21, 18959853), (33, 12065361), (57, 6985209), (63, 6319951), (77, 5170869), (99, 4021787), (121, 3290553), (133, 2993661), (171, 2328403), (209, 1905057), (231, 1723623), (363, 1096851), (399, 997887), (627, 635019), (693, 574541), (847, 470079), (1089, 365617), (1197, 332629), (1463, 272151), (1881, 211673), (2299, 173187), (2541, 156693), (2749, 144837), (4389, 90717), (6897, 57729), (7623, 52231), (8247, 48279), (13167, 30239), (16093, 24741), (19243, 20691)]