21097832

素因数分解:

$2^3\times 7^2\times {\mathrm{107}}^1\times {\mathrm{503}}^1$

素因数の和:630

約数の個数: 48

約数和(自身を含む): 46539360

約数和(自身を除く): 25441528

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 107, 196, 214, 392, 428, 503, 749, 856, 1006, 1498, 2012, 2996, 3521, 4024, 5243, 5992, 7042, 10486, 14084, 20972, 24647, 28168, 41944, 49294, 53821, 98588, 107642, 197176, 215284, 376747, 430568, 753494, 1506988, 2637229, 3013976, 5274458, 10548916, 21097832]

約数ペア:

[(1, 21097832), (2, 10548916), (4, 5274458), (7, 3013976), (8, 2637229), (14, 1506988), (28, 753494), (49, 430568), (56, 376747), (98, 215284), (107, 197176), (196, 107642), (214, 98588), (392, 53821), (428, 49294), (503, 41944), (749, 28168), (856, 24647), (1006, 20972), (1498, 14084), (2012, 10486), (2996, 7042), (3521, 5992), (4024, 5243)]