21953106

素因数分解:

$2^1\times 3^8\times 7^1\times {\mathrm{239}}^1$

素因数の和:272

約数の個数: 72

約数和(自身を含む): 56684160

約数和(自身を除く): 34731054

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 239, 243, 378, 478, 486, 567, 717, 729, 1134, 1434, 1458, 1673, 1701, 2151, 2187, 3346, 3402, 4302, 4374, 5019, 5103, 6453, 6561, 10038, 10206, 12906, 13122, 15057, 15309, 19359, 30114, 30618, 38718, 45171, 45927, 58077, 90342, 91854, 116154, 135513, 174231, 271026, 348462, 406539, 522693, 813078, 1045386, 1219617, 1568079, 2439234, 3136158, 3658851, 7317702, 10976553, 21953106]

約数ペア:

[(1, 21953106), (2, 10976553), (3, 7317702), (6, 3658851), (7, 3136158), (9, 2439234), (14, 1568079), (18, 1219617), (21, 1045386), (27, 813078), (42, 522693), (54, 406539), (63, 348462), (81, 271026), (126, 174231), (162, 135513), (189, 116154), (239, 91854), (243, 90342), (378, 58077), (478, 45927), (486, 45171), (567, 38718), (717, 30618), (729, 30114), (1134, 19359), (1434, 15309), (1458, 15057), (1673, 13122), (1701, 12906), (2151, 10206), (2187, 10038), (3346, 6561), (3402, 6453), (4302, 5103), (4374, 5019)]