20143475

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{6659}}^1$

素因数の和:6691

約数の個数: 18

約数和(自身を含む): 27459180

約数和(自身を除く): 7315705

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 6659, 33295, 73249, 166475, 366245, 805739, 1831225, 4028695, 20143475]

約数ペア:

[(1, 20143475), (5, 4028695), (11, 1831225), (25, 805739), (55, 366245), (121, 166475), (275, 73249), (605, 33295), (3025, 6659)]