21215202476

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{294149}}^1$

素因数の和:294258

約数の個数: 48

約数和(自身を含む): 42663516000

約数和(自身を除く): 21448313524

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 73, 76, 146, 247, 292, 494, 949, 988, 1387, 1898, 2774, 3796, 5548, 18031, 36062, 72124, 294149, 588298, 1176596, 3823937, 5588831, 7647874, 11177662, 15295748, 21472877, 22355324, 42945754, 72654803, 85891508, 145309606, 279147401, 290619212, 407984663, 558294802, 815969326, 1116589604, 1631938652, 5303800619, 10607601238, 21215202476]

約数ペア:

[(1, 21215202476), (2, 10607601238), (4, 5303800619), (13, 1631938652), (19, 1116589604), (26, 815969326), (38, 558294802), (52, 407984663), (73, 290619212), (76, 279147401), (146, 145309606), (247, 85891508), (292, 72654803), (494, 42945754), (949, 22355324), (988, 21472877), (1387, 15295748), (1898, 11177662), (2774, 7647874), (3796, 5588831), (5548, 3823937), (18031, 1176596), (36062, 588298), (72124, 294149)]