21747305

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{269}}^1$

素因数の和:353

約数の個数: 32

約数和(自身を含む): 29548800

約数和(自身を除く): 7801495

約数列:

[1, 5, 19, 23, 37, 95, 115, 185, 269, 437, 703, 851, 1345, 2185, 3515, 4255, 5111, 6187, 9953, 16169, 25555, 30935, 49765, 80845, 117553, 189107, 228919, 587765, 945535, 1144595, 4349461, 21747305]

約数ペア:

[(1, 21747305), (5, 4349461), (19, 1144595), (23, 945535), (37, 587765), (95, 228919), (115, 189107), (185, 117553), (269, 80845), (437, 49765), (703, 30935), (851, 25555), (1345, 16169), (2185, 9953), (3515, 6187), (4255, 5111)]