18909153599

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{47149}}^1$

素因数の和:47279

約数の個数: 32

約数和(自身を含む): 23464857600

約数和(自身を除く): 4555704001

約数列:

[1, 7, 23, 47, 53, 161, 329, 371, 1081, 1219, 2491, 7567, 8533, 17437, 47149, 57293, 330043, 401051, 1084427, 2216003, 2498897, 7590989, 15512021, 17492279, 50968069, 57474631, 117448159, 356776483, 402322417, 822137113, 2701307657, 18909153599]

約数ペア:

[(1, 18909153599), (7, 2701307657), (23, 822137113), (47, 402322417), (53, 356776483), (161, 117448159), (329, 57474631), (371, 50968069), (1081, 17492279), (1219, 15512021), (2491, 7590989), (7567, 2498897), (8533, 2216003), (17437, 1084427), (47149, 401051), (57293, 330043)]