20988696

素因数分解:

$2^3\times 3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{809}}^1$

素因数の和:888

約数の個数: 64

約数和(自身を含む): 55987200

約数和(自身を除く): 34998504

約数列:

[1, 2, 3, 4, 6, 8, 12, 23, 24, 46, 47, 69, 92, 94, 138, 141, 184, 188, 276, 282, 376, 552, 564, 809, 1081, 1128, 1618, 2162, 2427, 3236, 3243, 4324, 4854, 6472, 6486, 8648, 9708, 12972, 18607, 19416, 25944, 37214, 38023, 55821, 74428, 76046, 111642, 114069, 148856, 152092, 223284, 228138, 304184, 446568, 456276, 874529, 912552, 1749058, 2623587, 3498116, 5247174, 6996232, 10494348, 20988696]

約数ペア:

[(1, 20988696), (2, 10494348), (3, 6996232), (4, 5247174), (6, 3498116), (8, 2623587), (12, 1749058), (23, 912552), (24, 874529), (46, 456276), (47, 446568), (69, 304184), (92, 228138), (94, 223284), (138, 152092), (141, 148856), (184, 114069), (188, 111642), (276, 76046), (282, 74428), (376, 55821), (552, 38023), (564, 37214), (809, 25944), (1081, 19416), (1128, 18607), (1618, 12972), (2162, 9708), (2427, 8648), (3236, 6486), (3243, 6472), (4324, 4854)]