20947626

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{151}}^1\times {\mathrm{367}}^1$

素因数の和:536

約数の個数: 64

約数和(自身を含む): 53698560

約数和(自身を除く): 32750934

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 151, 189, 302, 367, 378, 453, 734, 906, 1057, 1101, 1359, 2114, 2202, 2569, 2718, 3171, 3303, 4077, 5138, 6342, 6606, 7707, 8154, 9513, 9909, 15414, 19026, 19818, 23121, 28539, 46242, 55417, 57078, 69363, 110834, 138726, 166251, 332502, 387919, 498753, 775838, 997506, 1163757, 1496259, 2327514, 2992518, 3491271, 6982542, 10473813, 20947626]

約数ペア:

[(1, 20947626), (2, 10473813), (3, 6982542), (6, 3491271), (7, 2992518), (9, 2327514), (14, 1496259), (18, 1163757), (21, 997506), (27, 775838), (42, 498753), (54, 387919), (63, 332502), (126, 166251), (151, 138726), (189, 110834), (302, 69363), (367, 57078), (378, 55417), (453, 46242), (734, 28539), (906, 23121), (1057, 19818), (1101, 19026), (1359, 15414), (2114, 9909), (2202, 9513), (2569, 8154), (2718, 7707), (3171, 6606), (3303, 6342), (4077, 5138)]