20521566303

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{13567}}^1$

素因数の和:13836

約数の個数: 64

約数和(自身を含む): 35011952640

約数和(自身を除く): 14490386337

約数列:

[1, 3, 7, 17, 19, 21, 51, 57, 119, 133, 223, 323, 357, 399, 669, 969, 1561, 2261, 3791, 4237, 4683, 6783, 11373, 12711, 13567, 26537, 29659, 40701, 72029, 79611, 88977, 94969, 216087, 230639, 257773, 284907, 504203, 691917, 773319, 1512609, 1614473, 1804411, 3025441, 4382141, 4843419, 5413233, 9076323, 13146423, 21178087, 30674987, 51432497, 57483379, 63534261, 92024961, 154297491, 172450137, 360027479, 402383653, 977217443, 1080082437, 1207150959, 2931652329, 6840522101, 20521566303]

約数ペア:

[(1, 20521566303), (3, 6840522101), (7, 2931652329), (17, 1207150959), (19, 1080082437), (21, 977217443), (51, 402383653), (57, 360027479), (119, 172450137), (133, 154297491), (223, 92024961), (323, 63534261), (357, 57483379), (399, 51432497), (669, 30674987), (969, 21178087), (1561, 13146423), (2261, 9076323), (3791, 5413233), (4237, 4843419), (4683, 4382141), (6783, 3025441), (11373, 1804411), (12711, 1614473), (13567, 1512609), (26537, 773319), (29659, 691917), (40701, 504203), (72029, 284907), (79611, 257773), (88977, 230639), (94969, 216087)]