28827813

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{439}}^1$

素因数の和:561

約数の個数: 32

約数和(自身を含む): 45619200

約数和(自身を除く): 16791387

約数列:

[1, 3, 7, 21, 53, 59, 159, 177, 371, 413, 439, 1113, 1239, 1317, 3073, 3127, 9219, 9381, 21889, 23267, 25901, 65667, 69801, 77703, 162869, 181307, 488607, 543921, 1372753, 4118259, 9609271, 28827813]

約数ペア:

[(1, 28827813), (3, 9609271), (7, 4118259), (21, 1372753), (53, 543921), (59, 488607), (159, 181307), (177, 162869), (371, 77703), (413, 69801), (439, 65667), (1113, 25901), (1239, 23267), (1317, 21889), (3073, 9381), (3127, 9219)]