21706412

素因数分解:

$2^2\times 7^3\times {\mathrm{13}}^1\times {\mathrm{1217}}^1$

素因数の和:1255

約数の個数: 48

約数和(自身を含む): 47745600

約数和(自身を除く): 26039188

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 343, 364, 637, 686, 1217, 1274, 1372, 2434, 2548, 4459, 4868, 8519, 8918, 15821, 17038, 17836, 31642, 34076, 59633, 63284, 110747, 119266, 221494, 238532, 417431, 442988, 775229, 834862, 1550458, 1669724, 3100916, 5426603, 10853206, 21706412]

約数ペア:

[(1, 21706412), (2, 10853206), (4, 5426603), (7, 3100916), (13, 1669724), (14, 1550458), (26, 834862), (28, 775229), (49, 442988), (52, 417431), (91, 238532), (98, 221494), (182, 119266), (196, 110747), (343, 63284), (364, 59633), (637, 34076), (686, 31642), (1217, 17836), (1274, 17038), (1372, 15821), (2434, 8918), (2548, 8519), (4459, 4868)]