16811865

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^2$

素因数の和:143

約数の個数: 72

約数和(自身を含む): 35730240

約数和(自身を除く): 18918375

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 45, 53, 57, 63, 95, 105, 133, 159, 171, 265, 285, 315, 371, 399, 477, 665, 795, 855, 1007, 1113, 1197, 1855, 1995, 2385, 2809, 3021, 3339, 5035, 5565, 5985, 7049, 8427, 9063, 14045, 15105, 16695, 19663, 21147, 25281, 35245, 42135, 45315, 53371, 58989, 63441, 98315, 105735, 126405, 160113, 176967, 266855, 294945, 317205, 373597, 480339, 800565, 884835, 1120791, 1867985, 2401695, 3362373, 5603955, 16811865]

約数ペア:

[(1, 16811865), (3, 5603955), (5, 3362373), (7, 2401695), (9, 1867985), (15, 1120791), (19, 884835), (21, 800565), (35, 480339), (45, 373597), (53, 317205), (57, 294945), (63, 266855), (95, 176967), (105, 160113), (133, 126405), (159, 105735), (171, 98315), (265, 63441), (285, 58989), (315, 53371), (371, 45315), (399, 42135), (477, 35245), (665, 25281), (795, 21147), (855, 19663), (1007, 16695), (1113, 15105), (1197, 14045), (1855, 9063), (1995, 8427), (2385, 7049), (2809, 5985), (3021, 5565), (3339, 5035)]