21519288

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{42697}}^1$

素因数の和:42716

約数の個数: 48

約数和(自身を含む): 66608880

約数和(自身を除く): 45089592

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 42697, 85394, 128091, 170788, 256182, 298879, 341576, 384273, 512364, 597758, 768546, 896637, 1024728, 1195516, 1537092, 1793274, 2391032, 2689911, 3074184, 3586548, 5379822, 7173096, 10759644, 21519288]

約数ペア:

[(1, 21519288), (2, 10759644), (3, 7173096), (4, 5379822), (6, 3586548), (7, 3074184), (8, 2689911), (9, 2391032), (12, 1793274), (14, 1537092), (18, 1195516), (21, 1024728), (24, 896637), (28, 768546), (36, 597758), (42, 512364), (56, 384273), (63, 341576), (72, 298879), (84, 256182), (126, 170788), (168, 128091), (252, 85394), (504, 42697)]