20697894

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{757}}^1$

素因数の和:810

約数の個数: 72

約数和(自身を含む): 53921088

約数和(自身を除く): 33223194

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 31, 42, 49, 62, 63, 93, 98, 126, 147, 186, 217, 279, 294, 434, 441, 558, 651, 757, 882, 1302, 1514, 1519, 1953, 2271, 3038, 3906, 4542, 4557, 5299, 6813, 9114, 10598, 13626, 13671, 15897, 23467, 27342, 31794, 37093, 46934, 47691, 70401, 74186, 95382, 111279, 140802, 164269, 211203, 222558, 328538, 333837, 422406, 492807, 667674, 985614, 1149883, 1478421, 2299766, 2956842, 3449649, 6899298, 10348947, 20697894]

約数ペア:

[(1, 20697894), (2, 10348947), (3, 6899298), (6, 3449649), (7, 2956842), (9, 2299766), (14, 1478421), (18, 1149883), (21, 985614), (31, 667674), (42, 492807), (49, 422406), (62, 333837), (63, 328538), (93, 222558), (98, 211203), (126, 164269), (147, 140802), (186, 111279), (217, 95382), (279, 74186), (294, 70401), (434, 47691), (441, 46934), (558, 37093), (651, 31794), (757, 27342), (882, 23467), (1302, 15897), (1514, 13671), (1519, 13626), (1953, 10598), (2271, 9114), (3038, 6813), (3906, 5299), (4542, 4557)]