20872716

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2129}}^1$

素因数の和:2198

約数の個数: 48

約数和(自身を含む): 52483200

約数和(自身を除く): 31610484

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 43, 57, 76, 86, 114, 129, 172, 228, 258, 516, 817, 1634, 2129, 2451, 3268, 4258, 4902, 6387, 8516, 9804, 12774, 25548, 40451, 80902, 91547, 121353, 161804, 183094, 242706, 274641, 366188, 485412, 549282, 1098564, 1739393, 3478786, 5218179, 6957572, 10436358, 20872716]

約数ペア:

[(1, 20872716), (2, 10436358), (3, 6957572), (4, 5218179), (6, 3478786), (12, 1739393), (19, 1098564), (38, 549282), (43, 485412), (57, 366188), (76, 274641), (86, 242706), (114, 183094), (129, 161804), (172, 121353), (228, 91547), (258, 80902), (516, 40451), (817, 25548), (1634, 12774), (2129, 9804), (2451, 8516), (3268, 6387), (4258, 4902)]