217409619

素因数分解:

$3^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{103}}^1\times {\mathrm{173}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 346574592

約数和(自身を除く): 129164973

約数列:

[1, 3, 7, 21, 49, 83, 103, 147, 173, 249, 309, 519, 581, 721, 1211, 1743, 2163, 3633, 4067, 5047, 8477, 8549, 12201, 14359, 15141, 17819, 25431, 25647, 43077, 53457, 59843, 100513, 124733, 179529, 301539, 374199, 418901, 703591, 873131, 1256703, 1478977, 2110773, 2619393, 4436931, 10352839, 31058517, 72469873, 217409619]

約数ペア:

[(1, 217409619), (3, 72469873), (7, 31058517), (21, 10352839), (49, 4436931), (83, 2619393), (103, 2110773), (147, 1478977), (173, 1256703), (249, 873131), (309, 703591), (519, 418901), (581, 374199), (721, 301539), (1211, 179529), (1743, 124733), (2163, 100513), (3633, 59843), (4067, 53457), (5047, 43077), (8477, 25647), (8549, 25431), (12201, 17819), (14359, 15141)]