21354005

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{337}}^1$

素因数の和:413

約数の個数: 32

約数和(自身を含む): 29203200

約数和(自身を除く): 7849195

約数列:

[1, 5, 19, 23, 29, 95, 115, 145, 337, 437, 551, 667, 1685, 2185, 2755, 3335, 6403, 7751, 9773, 12673, 32015, 38755, 48865, 63365, 147269, 185687, 224779, 736345, 928435, 1123895, 4270801, 21354005]

約数ペア:

[(1, 21354005), (5, 4270801), (19, 1123895), (23, 928435), (29, 736345), (95, 224779), (115, 185687), (145, 147269), (337, 63365), (437, 48865), (551, 38755), (667, 32015), (1685, 12673), (2185, 9773), (2755, 7751), (3335, 6403)]