17550561

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 27648000

約数和(自身を除く): 10097439

約数列:

[1, 3, 7, 21, 71, 79, 149, 213, 237, 447, 497, 553, 1043, 1491, 1659, 3129, 5609, 10579, 11771, 16827, 31737, 35313, 39263, 74053, 82397, 117789, 222159, 247191, 835741, 2507223, 5850187, 17550561]

約数ペア:

[(1, 17550561), (3, 5850187), (7, 2507223), (21, 835741), (71, 247191), (79, 222159), (149, 117789), (213, 82397), (237, 74053), (447, 39263), (497, 35313), (553, 31737), (1043, 16827), (1491, 11771), (1659, 10579), (3129, 5609)]