21699821164

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{205951}}^1$

素因数の和:206086

約数の個数: 48

約数和(自身を含む): 44841517056

約数和(自身を除く): 23141695892

約数列:

[1, 2, 4, 7, 14, 28, 53, 71, 106, 142, 212, 284, 371, 497, 742, 994, 1484, 1988, 3763, 7526, 15052, 26341, 52682, 105364, 205951, 411902, 823804, 1441657, 2883314, 5766628, 10915403, 14622521, 21830806, 29245042, 43661612, 58490084, 76407821, 102357647, 152815642, 204715294, 305631284, 409430588, 774993613, 1549987226, 3099974452, 5424955291, 10849910582, 21699821164]

約数ペア:

[(1, 21699821164), (2, 10849910582), (4, 5424955291), (7, 3099974452), (14, 1549987226), (28, 774993613), (53, 409430588), (71, 305631284), (106, 204715294), (142, 152815642), (212, 102357647), (284, 76407821), (371, 58490084), (497, 43661612), (742, 29245042), (994, 21830806), (1484, 14622521), (1988, 10915403), (3763, 5766628), (7526, 2883314), (15052, 1441657), (26341, 823804), (52682, 411902), (105364, 205951)]