20781683998

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{467}}^1\times {\mathrm{7459}}^1$

素因数の和:8104

約数の個数: 32

約数和(自身を含む): 33097334400

約数和(自身を除く): 12315650402

約数列:

[1, 2, 19, 38, 157, 314, 467, 934, 2983, 5966, 7459, 8873, 14918, 17746, 73319, 141721, 146638, 283442, 1171063, 1393061, 2342126, 2786122, 3483353, 6966706, 22250197, 44500394, 66183707, 132367414, 546886421, 1093772842, 10390841999, 20781683998]

約数ペア:

[(1, 20781683998), (2, 10390841999), (19, 1093772842), (38, 546886421), (157, 132367414), (314, 66183707), (467, 44500394), (934, 22250197), (2983, 6966706), (5966, 3483353), (7459, 2786122), (8873, 2342126), (14918, 1393061), (17746, 1171063), (73319, 283442), (141721, 146638)]