21747135

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{283}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 35988480

約数和(自身を除く): 14241345

約数列:

[1, 3, 5, 15, 47, 109, 141, 235, 283, 327, 545, 705, 849, 1415, 1635, 4245, 5123, 13301, 15369, 25615, 30847, 39903, 66505, 76845, 92541, 154235, 199515, 462705, 1449809, 4349427, 7249045, 21747135]

約数ペア:

[(1, 21747135), (3, 7249045), (5, 4349427), (15, 1449809), (47, 462705), (109, 199515), (141, 154235), (235, 92541), (283, 76845), (327, 66505), (545, 39903), (705, 30847), (849, 25615), (1415, 15369), (1635, 13301), (4245, 5123)]