287881419

素因数分解:

$3^1\times 7^2\times {\mathrm{197}}^1\times {\mathrm{9941}}^1$

素因数の和:10155

約数の個数: 24

約数和(自身を含む): 448821648

約数和(自身を除く): 160940229

約数列:

[1, 3, 7, 21, 49, 147, 197, 591, 1379, 4137, 9653, 9941, 28959, 29823, 69587, 208761, 487109, 1461327, 1958377, 5875131, 13708639, 41125917, 95960473, 287881419]

約数ペア:

[(1, 287881419), (3, 95960473), (7, 41125917), (21, 13708639), (49, 5875131), (147, 1958377), (197, 1461327), (591, 487109), (1379, 208761), (4137, 69587), (9653, 29823), (9941, 28959)]