21593040

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12853}}^1$

素因数の和:12876

約数の個数: 80

約数和(自身を含む): 76507008

約数和(自身を除く): 54913968

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12853, 25706, 38559, 51412, 64265, 77118, 89971, 102824, 128530, 154236, 179942, 192795, 205648, 257060, 269913, 308472, 359884, 385590, 449855, 514120, 539826, 616944, 719768, 771180, 899710, 1028240, 1079652, 1349565, 1439536, 1542360, 1799420, 2159304, 2699130, 3084720, 3598840, 4318608, 5398260, 7197680, 10796520, 21593040]

約数ペア:

[(1, 21593040), (2, 10796520), (3, 7197680), (4, 5398260), (5, 4318608), (6, 3598840), (7, 3084720), (8, 2699130), (10, 2159304), (12, 1799420), (14, 1542360), (15, 1439536), (16, 1349565), (20, 1079652), (21, 1028240), (24, 899710), (28, 771180), (30, 719768), (35, 616944), (40, 539826), (42, 514120), (48, 449855), (56, 385590), (60, 359884), (70, 308472), (80, 269913), (84, 257060), (105, 205648), (112, 192795), (120, 179942), (140, 154236), (168, 128530), (210, 102824), (240, 89971), (280, 77118), (336, 64265), (420, 51412), (560, 38559), (840, 25706), (1680, 12853)]