21953435

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{503}}^1$

素因数の和:587

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 9980005

約数列:

[1, 5, 7, 29, 35, 43, 145, 203, 215, 301, 503, 1015, 1247, 1505, 2515, 3521, 6235, 8729, 14587, 17605, 21629, 43645, 72935, 102109, 108145, 151403, 510545, 627241, 757015, 3136205, 4390687, 21953435]

約数ペア:

[(1, 21953435), (5, 4390687), (7, 3136205), (29, 757015), (35, 627241), (43, 510545), (145, 151403), (203, 108145), (215, 102109), (301, 72935), (503, 43645), (1015, 21629), (1247, 17605), (1505, 14587), (2515, 8729), (3521, 6235)]