21167243225

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{307}}^1\times {\mathrm{491}}^1$

素因数の和:986

約数の個数: 48

約数和(自身を含む): 27227382336

約数和(自身を除く): 6060139111

約数列:

[1, 5, 25, 41, 137, 205, 307, 491, 685, 1025, 1535, 2455, 3425, 5617, 7675, 12275, 12587, 20131, 28085, 42059, 62935, 67267, 100655, 140425, 150737, 210295, 314675, 336335, 503275, 753685, 1051475, 1681675, 1724419, 2757947, 3768425, 6180217, 8622095, 13789735, 20650969, 30901085, 43110475, 68948675, 103254845, 154505425, 516274225, 846689729, 4233448645, 21167243225]

約数ペア:

[(1, 21167243225), (5, 4233448645), (25, 846689729), (41, 516274225), (137, 154505425), (205, 103254845), (307, 68948675), (491, 43110475), (685, 30901085), (1025, 20650969), (1535, 13789735), (2455, 8622095), (3425, 6180217), (5617, 3768425), (7675, 2757947), (12275, 1724419), (12587, 1681675), (20131, 1051475), (28085, 753685), (42059, 503275), (62935, 336335), (67267, 314675), (100655, 210295), (140425, 150737)]