21386096

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{683}}^1$

素因数の和:813

約数の個数: 40

約数和(自身を含む): 44104320

約数和(自身を除く): 22718224

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 103, 152, 206, 304, 412, 683, 824, 1366, 1648, 1957, 2732, 3914, 5464, 7828, 10928, 12977, 15656, 25954, 31312, 51908, 70349, 103816, 140698, 207632, 281396, 562792, 1125584, 1336631, 2673262, 5346524, 10693048, 21386096]

約数ペア:

[(1, 21386096), (2, 10693048), (4, 5346524), (8, 2673262), (16, 1336631), (19, 1125584), (38, 562792), (76, 281396), (103, 207632), (152, 140698), (206, 103816), (304, 70349), (412, 51908), (683, 31312), (824, 25954), (1366, 15656), (1648, 12977), (1957, 10928), (2732, 7828), (3914, 5464)]