18697744

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{373}}^1$

素因数の和:635

約数の個数: 40

約数和(自身を含む): 39280472

約数和(自身を除く): 20582728

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 241, 373, 482, 746, 964, 1492, 1928, 2984, 3133, 3856, 4849, 5968, 6266, 9698, 12532, 19396, 25064, 38792, 50128, 77584, 89893, 179786, 359572, 719144, 1168609, 1438288, 2337218, 4674436, 9348872, 18697744]

約数ペア:

[(1, 18697744), (2, 9348872), (4, 4674436), (8, 2337218), (13, 1438288), (16, 1168609), (26, 719144), (52, 359572), (104, 179786), (208, 89893), (241, 77584), (373, 50128), (482, 38792), (746, 25064), (964, 19396), (1492, 12532), (1928, 9698), (2984, 6266), (3133, 5968), (3856, 4849)]