21350164

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:145

約数の個数: 72

約数和(自身を含む): 45799488

約数和(自身を除く): 24449324

約数列:

[1, 2, 4, 11, 17, 22, 23, 34, 44, 46, 68, 73, 92, 146, 187, 253, 289, 292, 374, 391, 506, 578, 748, 782, 803, 1012, 1156, 1241, 1564, 1606, 1679, 2482, 3179, 3212, 3358, 4301, 4964, 6358, 6647, 6716, 8602, 12716, 13294, 13651, 17204, 18469, 21097, 26588, 27302, 28543, 36938, 42194, 54604, 57086, 73117, 73876, 84388, 114172, 146234, 232067, 292468, 313973, 464134, 485231, 627946, 928268, 970462, 1255892, 1940924, 5337541, 10675082, 21350164]

約数ペア:

[(1, 21350164), (2, 10675082), (4, 5337541), (11, 1940924), (17, 1255892), (22, 970462), (23, 928268), (34, 627946), (44, 485231), (46, 464134), (68, 313973), (73, 292468), (92, 232067), (146, 146234), (187, 114172), (253, 84388), (289, 73876), (292, 73117), (374, 57086), (391, 54604), (506, 42194), (578, 36938), (748, 28543), (782, 27302), (803, 26588), (1012, 21097), (1156, 18469), (1241, 17204), (1564, 13651), (1606, 13294), (1679, 12716), (2482, 8602), (3179, 6716), (3212, 6647), (3358, 6358), (4301, 4964)]