21290092209

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{607}}^1$

素因数の和:851

約数の個数: 72

約数和(自身を含む): 33044094720

約数和(自身を除く): 11754002511

約数列:

[1, 3, 9, 23, 53, 69, 139, 159, 207, 417, 477, 529, 607, 1219, 1251, 1587, 1821, 3197, 3657, 4761, 5463, 7367, 9591, 10971, 13961, 22101, 28037, 28773, 32171, 41883, 66303, 73531, 84111, 84373, 96513, 125649, 169441, 220593, 252333, 253119, 289539, 321103, 508323, 661779, 739933, 759357, 963309, 1524969, 1940579, 2219799, 2889927, 3897143, 4471769, 5821737, 6659397, 11691429, 13415307, 17018459, 17465211, 35074287, 40245921, 44633317, 51055377, 102850687, 133899951, 153166131, 308552061, 401699853, 925656183, 2365565801, 7096697403, 21290092209]

約数ペア:

[(1, 21290092209), (3, 7096697403), (9, 2365565801), (23, 925656183), (53, 401699853), (69, 308552061), (139, 153166131), (159, 133899951), (207, 102850687), (417, 51055377), (477, 44633317), (529, 40245921), (607, 35074287), (1219, 17465211), (1251, 17018459), (1587, 13415307), (1821, 11691429), (3197, 6659397), (3657, 5821737), (4761, 4471769), (5463, 3897143), (7367, 2889927), (9591, 2219799), (10971, 1940579), (13961, 1524969), (22101, 963309), (28037, 759357), (28773, 739933), (32171, 661779), (41883, 508323), (66303, 321103), (73531, 289539), (84111, 253119), (84373, 252333), (96513, 220593), (125649, 169441)]