21869988

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:297

約数の個数: 96

約数和(自身を含む): 62576640

約数和(自身を除く): 40706652

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 57, 71, 76, 84, 114, 133, 142, 193, 213, 228, 266, 284, 386, 399, 426, 497, 532, 579, 772, 798, 852, 994, 1158, 1349, 1351, 1491, 1596, 1988, 2316, 2698, 2702, 2982, 3667, 4047, 4053, 5396, 5404, 5964, 7334, 8094, 8106, 9443, 11001, 13703, 14668, 16188, 16212, 18886, 22002, 25669, 27406, 28329, 37772, 41109, 44004, 51338, 54812, 56658, 77007, 82218, 95921, 102676, 113316, 154014, 164436, 191842, 260357, 287763, 308028, 383684, 520714, 575526, 781071, 1041428, 1151052, 1562142, 1822499, 3124284, 3644998, 5467497, 7289996, 10934994, 21869988]

約数ペア:

[(1, 21869988), (2, 10934994), (3, 7289996), (4, 5467497), (6, 3644998), (7, 3124284), (12, 1822499), (14, 1562142), (19, 1151052), (21, 1041428), (28, 781071), (38, 575526), (42, 520714), (57, 383684), (71, 308028), (76, 287763), (84, 260357), (114, 191842), (133, 164436), (142, 154014), (193, 113316), (213, 102676), (228, 95921), (266, 82218), (284, 77007), (386, 56658), (399, 54812), (426, 51338), (497, 44004), (532, 41109), (579, 37772), (772, 28329), (798, 27406), (852, 25669), (994, 22002), (1158, 18886), (1349, 16212), (1351, 16188), (1491, 14668), (1596, 13703), (1988, 11001), (2316, 9443), (2698, 8106), (2702, 8094), (2982, 7334), (3667, 5964), (4047, 5404), (4053, 5396)]