21881808

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{11689}}^1$

素因数の和:11716

約数の個数: 60

約数和(自身を含む): 65954980

約数和(自身を除く): 44073172

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 208, 234, 312, 468, 624, 936, 1872, 11689, 23378, 35067, 46756, 70134, 93512, 105201, 140268, 151957, 187024, 210402, 280536, 303914, 420804, 455871, 561072, 607828, 841608, 911742, 1215656, 1367613, 1683216, 1823484, 2431312, 2735226, 3646968, 5470452, 7293936, 10940904, 21881808]

約数ペア:

[(1, 21881808), (2, 10940904), (3, 7293936), (4, 5470452), (6, 3646968), (8, 2735226), (9, 2431312), (12, 1823484), (13, 1683216), (16, 1367613), (18, 1215656), (24, 911742), (26, 841608), (36, 607828), (39, 561072), (48, 455871), (52, 420804), (72, 303914), (78, 280536), (104, 210402), (117, 187024), (144, 151957), (156, 140268), (208, 105201), (234, 93512), (312, 70134), (468, 46756), (624, 35067), (936, 23378), (1872, 11689)]