19741806

素因数分解:

$2^1\times 3^5\times 7^2\times {\mathrm{829}}^1$

素因数の和:860

約数の個数: 72

約数和(自身を含む): 51662520

約数和(自身を除く): 31920714

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 49, 54, 63, 81, 98, 126, 147, 162, 189, 243, 294, 378, 441, 486, 567, 829, 882, 1134, 1323, 1658, 1701, 2487, 2646, 3402, 3969, 4974, 5803, 7461, 7938, 11606, 11907, 14922, 17409, 22383, 23814, 34818, 40621, 44766, 52227, 67149, 81242, 104454, 121863, 134298, 156681, 201447, 243726, 313362, 365589, 402894, 470043, 731178, 940086, 1096767, 1410129, 2193534, 2820258, 3290301, 6580602, 9870903, 19741806]

約数ペア:

[(1, 19741806), (2, 9870903), (3, 6580602), (6, 3290301), (7, 2820258), (9, 2193534), (14, 1410129), (18, 1096767), (21, 940086), (27, 731178), (42, 470043), (49, 402894), (54, 365589), (63, 313362), (81, 243726), (98, 201447), (126, 156681), (147, 134298), (162, 121863), (189, 104454), (243, 81242), (294, 67149), (378, 52227), (441, 44766), (486, 40621), (567, 34818), (829, 23814), (882, 22383), (1134, 17409), (1323, 14922), (1658, 11907), (1701, 11606), (2487, 7938), (2646, 7461), (3402, 5803), (3969, 4974)]