21989448

素因数分解:

$2^3\times 3^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:260

約数の個数: 128

約数和(自身を含む): 67737600

約数和(自身を除く): 45748152

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 41, 52, 54, 72, 78, 82, 104, 108, 117, 123, 156, 164, 191, 216, 234, 246, 312, 328, 351, 369, 382, 468, 492, 533, 573, 702, 738, 764, 936, 984, 1066, 1107, 1146, 1404, 1476, 1528, 1599, 1719, 2132, 2214, 2292, 2483, 2808, 2952, 3198, 3438, 4264, 4428, 4584, 4797, 4966, 5157, 6396, 6876, 7449, 7831, 8856, 9594, 9932, 10314, 12792, 13752, 14391, 14898, 15662, 19188, 19864, 20628, 22347, 23493, 28782, 29796, 31324, 38376, 41256, 44694, 46986, 57564, 59592, 62648, 67041, 70479, 89388, 93972, 101803, 115128, 134082, 140958, 178776, 187944, 203606, 211437, 268164, 281916, 305409, 407212, 422874, 536328, 563832, 610818, 814424, 845748, 916227, 1221636, 1691496, 1832454, 2443272, 2748681, 3664908, 5497362, 7329816, 10994724, 21989448]

約数ペア:

[(1, 21989448), (2, 10994724), (3, 7329816), (4, 5497362), (6, 3664908), (8, 2748681), (9, 2443272), (12, 1832454), (13, 1691496), (18, 1221636), (24, 916227), (26, 845748), (27, 814424), (36, 610818), (39, 563832), (41, 536328), (52, 422874), (54, 407212), (72, 305409), (78, 281916), (82, 268164), (104, 211437), (108, 203606), (117, 187944), (123, 178776), (156, 140958), (164, 134082), (191, 115128), (216, 101803), (234, 93972), (246, 89388), (312, 70479), (328, 67041), (351, 62648), (369, 59592), (382, 57564), (468, 46986), (492, 44694), (533, 41256), (573, 38376), (702, 31324), (738, 29796), (764, 28782), (936, 23493), (984, 22347), (1066, 20628), (1107, 19864), (1146, 19188), (1404, 15662), (1476, 14898), (1528, 14391), (1599, 13752), (1719, 12792), (2132, 10314), (2214, 9932), (2292, 9594), (2483, 8856), (2808, 7831), (2952, 7449), (3198, 6876), (3438, 6396), (4264, 5157), (4428, 4966), (4584, 4797)]