420273

素因数分解:

$3^2\times 7^2\times {\mathrm{953}}^1$

素因数の和:973

約数の個数: 18

約数和(自身を含む): 706914

約数和(自身を除く): 286641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 953, 2859, 6671, 8577, 20013, 46697, 60039, 140091, 420273]

約数ペア:

[(1, 420273), (3, 140091), (7, 60039), (9, 46697), (21, 20013), (49, 8577), (63, 6671), (147, 2859), (441, 953)]