20081061

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{743}}^1$

素因数の和:783

約数の個数: 64

約数和(自身を含む): 39997440

約数和(自身を除く): 19916379

約数列:

[1, 3, 7, 9, 11, 13, 21, 27, 33, 39, 63, 77, 91, 99, 117, 143, 189, 231, 273, 297, 351, 429, 693, 743, 819, 1001, 1287, 2079, 2229, 2457, 3003, 3861, 5201, 6687, 8173, 9009, 9659, 15603, 20061, 24519, 27027, 28977, 46809, 57211, 67613, 73557, 86931, 106249, 140427, 171633, 202839, 220671, 260793, 318747, 514899, 608517, 743743, 956241, 1544697, 1825551, 2231229, 2868723, 6693687, 20081061]

約数ペア:

[(1, 20081061), (3, 6693687), (7, 2868723), (9, 2231229), (11, 1825551), (13, 1544697), (21, 956241), (27, 743743), (33, 608517), (39, 514899), (63, 318747), (77, 260793), (91, 220671), (99, 202839), (117, 171633), (143, 140427), (189, 106249), (231, 86931), (273, 73557), (297, 67613), (351, 57211), (429, 46809), (693, 28977), (743, 27027), (819, 24519), (1001, 20061), (1287, 15603), (2079, 9659), (2229, 9009), (2457, 8173), (3003, 6687), (3861, 5201)]