20921837265

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1\times {\mathrm{8087}}^1$

素因数の和:8339

約数の個数: 96

約数和(自身を含む): 42636312576

約数和(自身を除く): 21714475311

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 43, 45, 63, 105, 129, 191, 215, 301, 315, 387, 573, 645, 903, 955, 1337, 1505, 1719, 1935, 2709, 2865, 4011, 4515, 6685, 8087, 8213, 8595, 12033, 13545, 20055, 24261, 24639, 40435, 41065, 56609, 57491, 60165, 72783, 73917, 121305, 123195, 169827, 172473, 283045, 287455, 347741, 363915, 369585, 509481, 517419, 849135, 862365, 1043223, 1544617, 1738705, 2434187, 2547405, 2587095, 3129669, 4633851, 5216115, 7302561, 7723085, 10812319, 12170935, 13901553, 15648345, 21907683, 23169255, 32436957, 36512805, 54061595, 66418531, 69507765, 97310871, 109538415, 162184785, 199255593, 332092655, 464929717, 486554355, 597766779, 996277965, 1394789151, 2324648585, 2988833895, 4184367453, 6973945755, 20921837265]

約数ペア:

[(1, 20921837265), (3, 6973945755), (5, 4184367453), (7, 2988833895), (9, 2324648585), (15, 1394789151), (21, 996277965), (35, 597766779), (43, 486554355), (45, 464929717), (63, 332092655), (105, 199255593), (129, 162184785), (191, 109538415), (215, 97310871), (301, 69507765), (315, 66418531), (387, 54061595), (573, 36512805), (645, 32436957), (903, 23169255), (955, 21907683), (1337, 15648345), (1505, 13901553), (1719, 12170935), (1935, 10812319), (2709, 7723085), (2865, 7302561), (4011, 5216115), (4515, 4633851), (6685, 3129669), (8087, 2587095), (8213, 2547405), (8595, 2434187), (12033, 1738705), (13545, 1544617), (20055, 1043223), (24261, 862365), (24639, 849135), (40435, 517419), (41065, 509481), (56609, 369585), (57491, 363915), (60165, 347741), (72783, 287455), (73917, 283045), (121305, 172473), (123195, 169827)]