209401647

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{8429}}^1$

素因数の和:8472

約数の個数: 36

約数和(自身を含む): 351733320

約数和(自身を除く): 142331673

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 169, 273, 507, 637, 1183, 1911, 3549, 8281, 8429, 24843, 25287, 59003, 109577, 177009, 328731, 413021, 767039, 1239063, 1424501, 2301117, 4273503, 5369273, 9971507, 16107819, 29914521, 69800549, 209401647]

約数ペア:

[(1, 209401647), (3, 69800549), (7, 29914521), (13, 16107819), (21, 9971507), (39, 5369273), (49, 4273503), (91, 2301117), (147, 1424501), (169, 1239063), (273, 767039), (507, 413021), (637, 328731), (1183, 177009), (1911, 109577), (3549, 59003), (8281, 25287), (8429, 24843)]