21858512

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5531}}^1$

素因数の和:5571

約数の個数: 40

約数和(自身を含む): 48017760

約数和(自身を除く): 26159248

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 5531, 11062, 22124, 44248, 71903, 88496, 105089, 143806, 210178, 287612, 420356, 575224, 840712, 1150448, 1366157, 1681424, 2732314, 5464628, 10929256, 21858512]

約数ペア:

[(1, 21858512), (2, 10929256), (4, 5464628), (8, 2732314), (13, 1681424), (16, 1366157), (19, 1150448), (26, 840712), (38, 575224), (52, 420356), (76, 287612), (104, 210178), (152, 143806), (208, 105089), (247, 88496), (304, 71903), (494, 44248), (988, 22124), (1976, 11062), (3952, 5531)]