21563898

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:203

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 26336262

約数列:

[1, 2, 3, 6, 19, 38, 43, 53, 57, 83, 86, 106, 114, 129, 159, 166, 249, 258, 318, 498, 817, 1007, 1577, 1634, 2014, 2279, 2451, 3021, 3154, 3569, 4399, 4558, 4731, 4902, 6042, 6837, 7138, 8798, 9462, 10707, 13197, 13674, 21414, 26394, 43301, 67811, 83581, 86602, 129903, 135622, 167162, 189157, 203433, 250743, 259806, 378314, 406866, 501486, 567471, 1134942, 3593983, 7187966, 10781949, 21563898]

約数ペア:

[(1, 21563898), (2, 10781949), (3, 7187966), (6, 3593983), (19, 1134942), (38, 567471), (43, 501486), (53, 406866), (57, 378314), (83, 259806), (86, 250743), (106, 203433), (114, 189157), (129, 167162), (159, 135622), (166, 129903), (249, 86602), (258, 83581), (318, 67811), (498, 43301), (817, 26394), (1007, 21414), (1577, 13674), (1634, 13197), (2014, 10707), (2279, 9462), (2451, 8798), (3021, 7138), (3154, 6837), (3569, 6042), (4399, 4902), (4558, 4731)]