21236852

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1423}}^1$

素因数の和:1488

約数の個数: 48

約数和(自身を含む): 46889472

約数和(自身を除く): 25652620

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 41, 52, 82, 91, 164, 182, 287, 364, 533, 574, 1066, 1148, 1423, 2132, 2846, 3731, 5692, 7462, 9961, 14924, 18499, 19922, 36998, 39844, 58343, 73996, 116686, 129493, 233372, 258986, 408401, 517972, 758459, 816802, 1516918, 1633604, 3033836, 5309213, 10618426, 21236852]

約数ペア:

[(1, 21236852), (2, 10618426), (4, 5309213), (7, 3033836), (13, 1633604), (14, 1516918), (26, 816802), (28, 758459), (41, 517972), (52, 408401), (82, 258986), (91, 233372), (164, 129493), (182, 116686), (287, 73996), (364, 58343), (533, 39844), (574, 36998), (1066, 19922), (1148, 18499), (1423, 14924), (2132, 9961), (2846, 7462), (3731, 5692)]