21146055

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{5443}}^1$

素因数の和:5495

約数の個数: 32

約数和(自身を含む): 39719424

約数和(自身を除く): 18573369

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 105, 111, 185, 259, 555, 777, 1295, 3885, 5443, 16329, 27215, 38101, 81645, 114303, 190505, 201391, 571515, 604173, 1006955, 1409737, 3020865, 4229211, 7048685, 21146055]

約数ペア:

[(1, 21146055), (3, 7048685), (5, 4229211), (7, 3020865), (15, 1409737), (21, 1006955), (35, 604173), (37, 571515), (105, 201391), (111, 190505), (185, 114303), (259, 81645), (555, 38101), (777, 27215), (1295, 16329), (3885, 5443)]