286937385

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{390391}}^1$

素因数の和:390413

約数の個数: 24

約数和(自身を含む): 534056256

約数和(自身を除く): 247118871

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 390391, 1171173, 1951955, 2732737, 5855865, 8198211, 13663685, 19129159, 40991055, 57387477, 95645795, 286937385]

約数ペア:

[(1, 286937385), (3, 95645795), (5, 57387477), (7, 40991055), (15, 19129159), (21, 13663685), (35, 8198211), (49, 5855865), (105, 2732737), (147, 1951955), (245, 1171173), (735, 390391)]