19518268

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{823}}^1$

素因数の和:863

約数の個数: 54

約数和(自身を含む): 43727208

約数和(自身を除く): 24208940

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 121, 154, 196, 242, 308, 484, 539, 823, 847, 1078, 1646, 1694, 2156, 3292, 3388, 5761, 5929, 9053, 11522, 11858, 18106, 23044, 23716, 36212, 40327, 63371, 80654, 99583, 126742, 161308, 199166, 253484, 398332, 443597, 697081, 887194, 1394162, 1774388, 2788324, 4879567, 9759134, 19518268]

約数ペア:

[(1, 19518268), (2, 9759134), (4, 4879567), (7, 2788324), (11, 1774388), (14, 1394162), (22, 887194), (28, 697081), (44, 443597), (49, 398332), (77, 253484), (98, 199166), (121, 161308), (154, 126742), (196, 99583), (242, 80654), (308, 63371), (484, 40327), (539, 36212), (823, 23716), (847, 23044), (1078, 18106), (1646, 11858), (1694, 11522), (2156, 9053), (3292, 5929), (3388, 5761)]