21651982

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1$

素因数の和:337

約数の個数: 48

約数和(自身を含む): 39931920

約数和(自身を除く): 18279938

約数列:

[1, 2, 11, 17, 19, 22, 34, 38, 121, 187, 209, 242, 277, 323, 374, 418, 554, 646, 2057, 2299, 3047, 3553, 4114, 4598, 4709, 5263, 6094, 7106, 9418, 10526, 33517, 39083, 51799, 57893, 67034, 78166, 89471, 103598, 115786, 178942, 569789, 636823, 984181, 1139578, 1273646, 1968362, 10825991, 21651982]

約数ペア:

[(1, 21651982), (2, 10825991), (11, 1968362), (17, 1273646), (19, 1139578), (22, 984181), (34, 636823), (38, 569789), (121, 178942), (187, 115786), (209, 103598), (242, 89471), (277, 78166), (323, 67034), (374, 57893), (418, 51799), (554, 39083), (646, 33517), (2057, 10526), (2299, 9418), (3047, 7106), (3553, 6094), (4114, 5263), (4598, 4709)]