661941

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:118

約数の個数: 36

約数和(自身を含む): 1185600

約数和(自身を除く): 523659

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 79, 133, 147, 171, 237, 399, 441, 553, 711, 931, 1197, 1501, 1659, 2793, 3871, 4503, 4977, 8379, 10507, 11613, 13509, 31521, 34839, 73549, 94563, 220647, 661941]

約数ペア:

[(1, 661941), (3, 220647), (7, 94563), (9, 73549), (19, 34839), (21, 31521), (49, 13509), (57, 11613), (63, 10507), (79, 8379), (133, 4977), (147, 4503), (171, 3871), (237, 2793), (399, 1659), (441, 1501), (553, 1197), (711, 931)]