21356490064

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{7457}}^1$

素因数の和:7773

約数の個数: 120

約数和(自身を含む): 52027873128

約数和(自身を除く): 30671383064

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 281, 364, 392, 562, 637, 728, 784, 1124, 1274, 1456, 1967, 2248, 2548, 3653, 3934, 4496, 5096, 7306, 7457, 7868, 10192, 13769, 14612, 14914, 15736, 25571, 27538, 29224, 29828, 31472, 51142, 52199, 55076, 58448, 59656, 96941, 102284, 104398, 110152, 119312, 178997, 193882, 204568, 208796, 220304, 357994, 365393, 387764, 409136, 417592, 678587, 715988, 730786, 775528, 835184, 1357174, 1431976, 1461572, 1551056, 2095417, 2714348, 2863952, 2923144, 4190834, 4750109, 5428696, 5846288, 8381668, 9500218, 10857392, 14667919, 16763336, 19000436, 27240421, 29335838, 33526672, 38000872, 54480842, 58671676, 76001744, 102675433, 108961684, 117343352, 190682947, 205350866, 217923368, 234686704, 381365894, 410701732, 435846736, 762731788, 821403464, 1334780629, 1525463576, 1642806928, 2669561258, 3050927152, 5339122516, 10678245032, 21356490064]

約数ペア:

[(1, 21356490064), (2, 10678245032), (4, 5339122516), (7, 3050927152), (8, 2669561258), (13, 1642806928), (14, 1525463576), (16, 1334780629), (26, 821403464), (28, 762731788), (49, 435846736), (52, 410701732), (56, 381365894), (91, 234686704), (98, 217923368), (104, 205350866), (112, 190682947), (182, 117343352), (196, 108961684), (208, 102675433), (281, 76001744), (364, 58671676), (392, 54480842), (562, 38000872), (637, 33526672), (728, 29335838), (784, 27240421), (1124, 19000436), (1274, 16763336), (1456, 14667919), (1967, 10857392), (2248, 9500218), (2548, 8381668), (3653, 5846288), (3934, 5428696), (4496, 4750109), (5096, 4190834), (7306, 2923144), (7457, 2863952), (7868, 2714348), (10192, 2095417), (13769, 1551056), (14612, 1461572), (14914, 1431976), (15736, 1357174), (25571, 835184), (27538, 775528), (29224, 730786), (29828, 715988), (31472, 678587), (51142, 417592), (52199, 409136), (55076, 387764), (58448, 365393), (59656, 357994), (96941, 220304), (102284, 208796), (104398, 204568), (110152, 193882), (119312, 178997)]