20691306

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:148

約数の個数: 72

約数和(自身を含む): 48913956

約数和(自身を除く): 28222650

約数列:

[1, 2, 3, 6, 9, 18, 23, 41, 46, 53, 69, 82, 106, 123, 138, 159, 207, 246, 318, 369, 414, 477, 529, 738, 943, 954, 1058, 1219, 1587, 1886, 2173, 2438, 2829, 3174, 3657, 4346, 4761, 5658, 6519, 7314, 8487, 9522, 10971, 13038, 16974, 19557, 21689, 21942, 28037, 39114, 43378, 49979, 56074, 65067, 84111, 99958, 130134, 149937, 168222, 195201, 252333, 299874, 390402, 449811, 504666, 899622, 1149517, 2299034, 3448551, 6897102, 10345653, 20691306]

約数ペア:

[(1, 20691306), (2, 10345653), (3, 6897102), (6, 3448551), (9, 2299034), (18, 1149517), (23, 899622), (41, 504666), (46, 449811), (53, 390402), (69, 299874), (82, 252333), (106, 195201), (123, 168222), (138, 149937), (159, 130134), (207, 99958), (246, 84111), (318, 65067), (369, 56074), (414, 49979), (477, 43378), (529, 39114), (738, 28037), (943, 21942), (954, 21689), (1058, 19557), (1219, 16974), (1587, 13038), (1886, 10971), (2173, 9522), (2438, 8487), (2829, 7314), (3174, 6519), (3657, 5658), (4346, 4761)]