19465455

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{293}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 32288256

約数和(自身を除く): 12822801

約数列:

[1, 3, 5, 15, 43, 103, 129, 215, 293, 309, 515, 645, 879, 1465, 1545, 4395, 4429, 12599, 13287, 22145, 30179, 37797, 62995, 66435, 90537, 150895, 188985, 452685, 1297697, 3893091, 6488485, 19465455]

約数ペア:

[(1, 19465455), (3, 6488485), (5, 3893091), (15, 1297697), (43, 452685), (103, 188985), (129, 150895), (215, 90537), (293, 66435), (309, 62995), (515, 37797), (645, 30179), (879, 22145), (1465, 13287), (1545, 12599), (4395, 4429)]