64471921

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:205

約数の個数: 32

約数和(自身を含む): 75018240

約数和(自身を除く): 10546319

約数列:

[1, 19, 23, 43, 47, 73, 437, 817, 893, 989, 1081, 1387, 1679, 2021, 3139, 3431, 18791, 20539, 31901, 38399, 46483, 59641, 65189, 72197, 78913, 147533, 883177, 1371743, 1499347, 2803127, 3393259, 64471921]

約数ペア:

[(1, 64471921), (19, 3393259), (23, 2803127), (43, 1499347), (47, 1371743), (73, 883177), (437, 147533), (817, 78913), (893, 72197), (989, 65189), (1081, 59641), (1387, 46483), (1679, 38399), (2021, 31901), (3139, 20539), (3431, 18791)]