21059298

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{229}}^1$

素因数の和:384

約数の個数: 64

約数和(自身を含む): 51004800

約数和(自身を除く): 29945502

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 131, 229, 234, 262, 351, 393, 458, 687, 702, 786, 1179, 1374, 1703, 2061, 2358, 2977, 3406, 3537, 4122, 5109, 5954, 6183, 7074, 8931, 10218, 12366, 15327, 17862, 26793, 29999, 30654, 45981, 53586, 59998, 80379, 89997, 91962, 160758, 179994, 269991, 389987, 539982, 779974, 809973, 1169961, 1619946, 2339922, 3509883, 7019766, 10529649, 21059298]

約数ペア:

[(1, 21059298), (2, 10529649), (3, 7019766), (6, 3509883), (9, 2339922), (13, 1619946), (18, 1169961), (26, 809973), (27, 779974), (39, 539982), (54, 389987), (78, 269991), (117, 179994), (131, 160758), (229, 91962), (234, 89997), (262, 80379), (351, 59998), (393, 53586), (458, 45981), (687, 30654), (702, 29999), (786, 26793), (1179, 17862), (1374, 15327), (1703, 12366), (2061, 10218), (2358, 8931), (2977, 7074), (3406, 6183), (3537, 5954), (4122, 5109)]