21785514

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:203

約数の個数: 64

約数和(自身を含む): 48384000

約数和(自身を除く): 26598486

約数列:

[1, 2, 3, 6, 19, 38, 41, 57, 59, 79, 82, 114, 118, 123, 158, 177, 237, 246, 354, 474, 779, 1121, 1501, 1558, 2242, 2337, 2419, 3002, 3239, 3363, 4503, 4661, 4674, 4838, 6478, 6726, 7257, 9006, 9322, 9717, 13983, 14514, 19434, 27966, 45961, 61541, 88559, 91922, 123082, 137883, 177118, 184623, 191101, 265677, 275766, 369246, 382202, 531354, 573303, 1146606, 3630919, 7261838, 10892757, 21785514]

約数ペア:

[(1, 21785514), (2, 10892757), (3, 7261838), (6, 3630919), (19, 1146606), (38, 573303), (41, 531354), (57, 382202), (59, 369246), (79, 275766), (82, 265677), (114, 191101), (118, 184623), (123, 177118), (158, 137883), (177, 123082), (237, 91922), (246, 88559), (354, 61541), (474, 45961), (779, 27966), (1121, 19434), (1501, 14514), (1558, 13983), (2242, 9717), (2337, 9322), (2419, 9006), (3002, 7257), (3239, 6726), (3363, 6478), (4503, 4838), (4661, 4674)]