28951377

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{613}}^1$

素因数の和:809

約数の個数: 32

約数和(自身を含む): 47862528

約数和(自身を除く): 18911151

約数列:

[1, 3, 7, 13, 21, 39, 91, 173, 273, 519, 613, 1211, 1839, 2249, 3633, 4291, 6747, 7969, 12873, 15743, 23907, 47229, 55783, 106049, 167349, 318147, 742343, 1378637, 2227029, 4135911, 9650459, 28951377]

約数ペア:

[(1, 28951377), (3, 9650459), (7, 4135911), (13, 2227029), (21, 1378637), (39, 742343), (91, 318147), (173, 167349), (273, 106049), (519, 55783), (613, 47229), (1211, 23907), (1839, 15743), (2249, 12873), (3633, 7969), (4291, 6747)]