21885006

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1109}}^1$

素因数の和:1161

約数の個数: 64

約数和(自身を含む): 53706240

約数和(自身を除く): 31821234

約数列:

[1, 2, 3, 6, 11, 13, 22, 23, 26, 33, 39, 46, 66, 69, 78, 138, 143, 253, 286, 299, 429, 506, 598, 759, 858, 897, 1109, 1518, 1794, 2218, 3289, 3327, 6578, 6654, 9867, 12199, 14417, 19734, 24398, 25507, 28834, 36597, 43251, 51014, 73194, 76521, 86502, 153042, 158587, 280577, 317174, 331591, 475761, 561154, 663182, 841731, 951522, 994773, 1683462, 1989546, 3647501, 7295002, 10942503, 21885006]

約数ペア:

[(1, 21885006), (2, 10942503), (3, 7295002), (6, 3647501), (11, 1989546), (13, 1683462), (22, 994773), (23, 951522), (26, 841731), (33, 663182), (39, 561154), (46, 475761), (66, 331591), (69, 317174), (78, 280577), (138, 158587), (143, 153042), (253, 86502), (286, 76521), (299, 73194), (429, 51014), (506, 43251), (598, 36597), (759, 28834), (858, 25507), (897, 24398), (1109, 19734), (1518, 14417), (1794, 12199), (2218, 9867), (3289, 6654), (3327, 6578)]