18201231384

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{421559}}^1$

素因数の和:421832

約数の個数: 64

約数和(自身を含む): 52205990400

約数和(自身を除く): 34004759016

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 257, 514, 771, 1028, 1542, 1799, 2056, 3084, 3598, 5397, 6168, 7196, 10794, 14392, 21588, 43176, 421559, 843118, 1264677, 1686236, 2529354, 2950913, 3372472, 5058708, 5901826, 8852739, 10117416, 11803652, 17705478, 23607304, 35410956, 70821912, 108340663, 216681326, 325021989, 433362652, 650043978, 758384641, 866725304, 1300087956, 1516769282, 2275153923, 2600175912, 3033538564, 4550307846, 6067077128, 9100615692, 18201231384]

約数ペア:

[(1, 18201231384), (2, 9100615692), (3, 6067077128), (4, 4550307846), (6, 3033538564), (7, 2600175912), (8, 2275153923), (12, 1516769282), (14, 1300087956), (21, 866725304), (24, 758384641), (28, 650043978), (42, 433362652), (56, 325021989), (84, 216681326), (168, 108340663), (257, 70821912), (514, 35410956), (771, 23607304), (1028, 17705478), (1542, 11803652), (1799, 10117416), (2056, 8852739), (3084, 5901826), (3598, 5058708), (5397, 3372472), (6168, 2950913), (7196, 2529354), (10794, 1686236), (14392, 1264677), (21588, 843118), (43176, 421559)]